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155-564: A natural disaster is the very harmful impact on a society or community after a natural hazard event. Some examples of natural hazard events include avalanches , droughts , earthquakes , floods , heat waves , landslides , tropical cyclones , volcanic activity and wildfires . Additional natural hazards include blizzards , dust storms , firestorms , hails , ice storms , sinkholes , thunderstorms , tornadoes and tsunamis . A natural disaster can cause loss of life or damage property . It typically causes economic damage. How bad
310-618: A chief is merely a person of influence, and leadership is based on personal qualities. The family forms the main social unit , with most members being related by birth or marriage. The anthropologist Marshall Sahlins described hunter-gatherers as the " original affluent society " due to their extended leisure time: Sahlins estimated that adults in hunter gatherer societies work three to five hours per day. This perspective has been challenged by other researchers, who have pointed out high mortality rates and perennial warfare in hunter-gatherer societies. Proponents of Sahlins' view argue that
465-605: A god or gods are angry with women's independent, freethinking behavior, such as dressing 'immodestly', having sex or abortions. For example, Hindutva party Hindu Makkal Katchi and others blamed women's struggle for the right to enter the Sabarimala temple for the August 2018 Kerala floods , purportedly inflicted by the angry god Ayyappan . During and after natural disasters, routine health behaviors become interrupted. In addition, health care systems may have broken down as
620-502: A ground blizzard . Blizzards can impact local economic activities, especially in regions where snowfall is rare. The Great Blizzard of 1888 affected the United States, when many tons of wheat crops were destroyed. In Asia, the 1972 Iran blizzard and the 2008 Afghanistan blizzard , were the deadliest blizzards in history; in the former, an area the size of Wisconsin was entirely buried in snow. The 1993 Superstorm originated in
775-745: A tsunami occurred near Fukushima, Japan and spread through the Pacific Ocean. Some of the 18 natural hazards included in the National Risk Index of FEMA now have a higher probability of occurring, and at higher intensity, due to the effects of climate change . This applies to heat waves, droughts, wildfire and coastal flooding. A heat wave is a period of unusually and excessively hot weather. Heat waves are rare and require specific combinations of weather events to take place, and may include temperature inversions , katabatic winds , or other phenomena. The worst heat wave in recent history
930-536: A vulnerable community . It results from the combination of the hazard and the exposure of a vulnerable society. Nowadays it is hard to distinguish between natural and human-made disasters. The term natural disaster was already challenged in 1976. Human choices in architecture, fire risk, and resource management can cause or worsen natural disasters. Climate change also affects how often disasters due to extreme weather hazards happen. These " climate hazards " are floods, heat waves, wildfires, tropical cyclones, and
1085-436: A vulnerable population . A natural disaster is the highly harmful impact on a society or community following a natural hazard event. The term " disaster " itself is defined as follows: "Disasters are serious disruptions to the functioning of a community that exceed its capacity to cope using its own resources. Disasters can be caused by natural, man-made and technological hazards , as well as various factors that influence
1240-650: A 2021 study published in Frontiers in Forests and Global Change , roughly 3% of the planet's terrestrial surface is ecologically and faunally intact, meaning areas with healthy populations of native animal species and little to no human footprint. Many of these intact ecosystems were in areas inhabited by indigenous peoples. According to a 2018 study in Nature , 87% of the oceans and 77% of land (excluding Antarctica) have been altered by anthropogenic activity, and 23% of
1395-460: A bottleneck in human evolution, and killed three-quarters of all plant life in the northern hemisphere. However, there is considerable debate regarding the veracity of this theory. The main danger from a supervolcano is the immense cloud of ash, which has a disastrous global effect on climate and temperature for many years. A tsunami (plural: tsunamis or tsunami; from Japanese: 津波, lit. "harbour wave"; English pronunciation: /tsuːˈnɑːmi/), also known as
1550-649: A classification comes from sociologist Gerhard Lenski who lists: (1) hunting and gathering; (2) horticultural; (3) agricultural; and (4) industrial; as well as specialized societies (e.g., fishing or herding). Some cultures have developed over time toward more complex forms of organization and control. This cultural evolution has a profound effect on patterns of community. Hunter-gatherer tribes have, at times, settled around seasonal food stocks to become agrarian villages. Villages have grown to become towns and cities. Cities have turned into city-states and nation-states . However, these processes are not unidirectional. In
1705-467: A cloud (generally after cooling) and settle thickly in nearby locations. When mixed with water, this forms a concrete-like material. In sufficient quantities, ash may cause roofs to collapse under its weight. Even small quantities will harm humans if inhaled – it has the consistency of ground glass and therefore causes laceration to the throat and lungs. Volcanic ash can also cause abrasion damage to moving machinery such as engines. The main killer of humans in
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#17327800991671860-435: A combination of human-induced processes acting upon the land. It is viewed as any change or disturbance to the land perceived to be deleterious or undesirable. Natural hazards are excluded as a cause; however human activities can indirectly affect phenomena such as floods and bush fires. This is considered to be an important topic of the 21st century due to the implications land degradation has upon agronomic productivity ,
2015-528: A consequence of human-induced climate change . A tornado is a violent and dangerous rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud , or, in rare cases, the base of a cumulus cloud . It is also referred to as a twister or a cyclone , although the word cyclone is used in meteorology in a wider sense to refer to any closed low pressure circulation. Tornadoes come in many shapes and sizes but typically take
2170-425: A decreased need for agricultural labor leads to urbanization . Industrial societies are often capitalist , and have high degrees of inequality along with high social mobility , as businesspeople use the market to amass large amounts of wealth. Working conditions in factories are generally restrictive and harsh. Workers, who have common interests, may organize into labor unions to advance those interests. On
2325-435: A distinctive culture and institutions ; a given society may be described as the sum total of such relationships among its constituent members. Human social structures are complex and highly cooperative, featuring the specialization of labor via social roles . Societies construct roles and other patterns of behavior by deeming certain actions or concepts acceptable or unacceptable—these expectations around behavior within
2480-453: A diverse range of subgroups, and the makeup of these ethnic groups can change over time at both the collective and individual level. Ethnic groupings can play a powerful role in the social identity and solidarity of ethnopolitical units. Ethnic identity has been closely tied to the rise of the nation state as the predominant form of political organization in the 19th and 20th centuries. Governments create laws and policies that affect
2635-426: A division of labor where women take on reproductive labor and other domestic roles. Gender roles have varied historically, and challenges to predominant gender norms have recurred in many societies. All human societies organize, recognize and classify types of social relationships based on relations between parents, children and other descendants ( consanguinity ), and relations through marriage ( affinity ). There
2790-404: A few kilometers before dissipating. The most extreme tornadoes can attain wind speeds of more than 480 km/h (300 mph), stretch more than 3 km (2 mi) across, and stay on the ground for perhaps more than 100 km (60 mi). Blizzards are severe winter storms characterized by heavy snow and strong winds. When high winds stir up snow that has already fallen, it is known as
2945-570: A four-year study in November 2006, which predicted that, at prevailing trends, the world would run out of wild-caught seafood in 2048. The scientists stated that the decline was a result of overfishing , pollution and other environmental factors that were reducing the population of fisheries at the same time as their ecosystems were being degraded. Yet again the analysis has met criticism as being fundamentally flawed, and many fishery management officials, industry representatives and scientists challenge
3100-651: A given society are known as societal norms . So far as it is collaborative , a society can enable its members to benefit in ways that would otherwise be difficult on an individual basis. Societies vary based on level of technology and type of economic activity. Larger societies with larger food surpluses often exhibit stratification or dominance patterns. Societies can have many different forms of government, various ways of understanding kinship, and different gender roles. Human behavior varies immensely between different societies; humans shape society, but society in turn shapes human beings. The term "society" often refers to
3255-608: A global overpopulation scenario is unlikely. Other projections have the population continuing to grow into the next century. While some studies, including the British government's 2021 Economics of Biodiversity review, posit that population growth and overconsumption are interdependent, critics suggest blaming overpopulation for environmental issues can unduly blame poor populations in the Global South or oversimplify more complex drivers, leading some to treat overconsumption as
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#17327800991673410-445: A hydrological result it is found that: These may be called direct effects. Effects on soil and water quality are indirect and complex, and subsequent impacts on natural, ecological and socio-economic conditions are intricate. In some, but not all instances, water logging and soil salinization can result. However, irrigation can also be used, together with soil drainage, to overcome soil salinization by leaching excess salts from
3565-483: A large area. Lenski differentiates between horticultural and agrarian societies by the use of the plow . Larger food supplies due to improved technology mean agrarian communities are larger than horticultural communities. A greater food surplus results in towns that become centers of trade. Economic trade in turn leads to increased specialization, including a ruling class, as well as educators, craftspeople, merchants, and religious figures, who do not directly participate in
3720-491: A large group of people in an ordered community, in a country or several similar countries, or the 'state of being with other people', e.g. "they lived in medieval society." The term dates back to at least 1513 and comes from the 12th-century French societe (modern French société ) meaning 'company'. Societe was in turn derived from the Latin word societas ('fellowship,' 'alliance', 'association'), which in turn
3875-420: A more complex division of labor. Specialized roles in horticultural societies include craftspeople, shamans (religious leaders), and traders. This role specialization allows horticultural societies to create a variety of artifacts. Scarce, defensible resources can lead to wealth inequalities in horticultural political systems. Agrarian societies use agricultural technological advances to cultivate crops over
4030-450: A population of six billion their biomass exceeded that of any other large land dwelling animal species that had ever existed by over 100 times. However, attributing overpopulation as a cause of environmental issues is controversial. Demographic projections indicate that population growth is slowing and world population will peak in the 21st century, and many experts believe that global resources can meet this increased demand, suggesting
4185-401: A pre-industrial society, food production, which is carried out through the use of human and animal labor , is the main economic activity. These societies can be subdivided according to their level of technology and their method of producing food. These subdivisions are hunting and gathering, pastoral, horticultural, and agrarian. The main form of food production in hunter-gatherer societies is
4340-442: A rate almost 32 times greater than those of the developing world, who make up the majority of the human population. Human civilization has caused the loss of 83% of all wild mammals and half of plants. The world's chickens are triple the weight of all the wild birds, while domesticated cattle and pigs outweigh all wild mammals by 14 to 1. Global meat consumption is projected to more than double by 2050, perhaps as much as 76%, as
4495-526: A rate comparable to other primates (although humans kill adults at a relatively high rate and have a relatively low rate of infanticide ). Another school of thought suggests that war is a relatively recent phenomenon and appeared due to changing social conditions. While not settled, the current evidence suggests warlike behavior only became common about 10,000 years ago, and in many regions even more recently. Phylogenetic analysis predicts 2% of human deaths to be caused by homicide, which approximately matches
4650-417: A result of the disaster, further reducing access to contraceptives. Unprotected intercourse during this time can lead to increased rates of childbirth, unintended pregnancies and sexually transmitted infections (STIs). Pregnant women are one of the groups disproportionately affected by natural disasters. Inadequate nutrition, little access to clean water, lack of health-care services and psychological stress in
4805-409: A row of temperatures exceeding 40 °C (104 °F), with some regional areas sweltering through much higher temperatures. A flood is an overflow of water that 'submerges' land. The EU Floods Directive defines a flood as a temporary covering of land that is usually dry with water. In the sense of 'flowing water', the word may also be applied to the inflow of the tides . Flooding may result from
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4960-405: A seismic sea wave or tidal wave, is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake. Tsunamis can be caused by undersea earthquakes such as the 2004 Boxing Day tsunami , or by landslides such as the one in 1958 at Lituya Bay, Alaska , or by volcanic eruptions such as the ancient eruption of Santorini . On March 11, 2011,
5115-464: A separate issue. Advocates for further reducing fertility rates, among them Rodolfo Dirzo and Paul R. Ehrlich , argue that this reduction should primarily affect the "overconsuming wealthy and middle classes," with the ultimate goal being to shrink "the scale of the human enterprise" and reverse the "growthmania" which they say threatens biodiversity and the "life-support systems of humanity." The environmental impact of agriculture varies based on
5270-622: A shared need for defense. Sedentary life, in Khaldun's view, was marked by secularization, decreased social cohesion, and increased interest in luxury. Rizal was a Filipino nationalist living toward the end of the Spanish Colonial Period who theorized about colonial societies. Rizal argued that indolence , which the Spanish used to justify their colonial occupation, was instead caused by the colonial occupation. Rizal compared
5425-449: A short warning time and are short-lived. Slow onset events can also be very damaging, for example drought is a natural hazards that develops slowly, sometimes over years. A natural disaster may cause loss of life, injury or other health impacts, property damage, loss of livelihoods and services, social and economic disruption, or environmental damage. Globally, the total number of deaths from natural disasters has been reduced by 75% over
5580-558: A slope prone to failure. In many cases, the landslide is triggered by a specific event (such as a heavy rainfall , an earthquake , a slope cut to build a road, and many others), although this is not always identifiable. An avalanche is a rapid flow of snow down a slope , such as a hill or mountain. Avalanches can be triggered spontaneously, by factors such as increased precipitation or snowpack weakening, or by external means such as humans, other animals, and earthquakes . Primarily composed of flowing snow and air, large avalanches have
5735-403: A social category that identify together as a group based on shared attributes that distinguish them from other groups. These shared attributes can be a common set of traditions, ancestry , language , history, society, culture, nation, religion, or social treatment within their residing area. There is no generally accepted definition of what constitutes an ethnic group, and humans have evolved
5890-467: A substitute for those synthetic fertilizers that require considerable fossil fuel use for manufacture, grazing use for wildlife habitat enhancement, and carbon sequestration in response to grazing practices, among others. Conversely, according to some studies appearing in peer-reviewed journals, the growing demand for meat is contributing to significant biodiversity loss as it is a significant driver of deforestation and habitat destruction. Moreover,
6045-561: A threat to humans and property, as well as wildlife . One example for a notable wildfire is the 1871 Peshtigo Fire in the United States, which killed at least 1700 people. Another one is the 2009 Victorian bushfires in Australia (collectively known as " Black Saturday bushfires "). In that year, a summer heat wave in Victoria, Australia, created conditions which fueled the massive bushfires in 2009. Melbourne experienced three days in
6200-518: A variety of factors from the soil, to water, the air, animal and soil diversity, plants, and the food itself. Some of the environmental issues that are related to agriculture are climate change , deforestation , genetic engineering, irrigation problems, pollutants, soil degradation , and waste . The environmental impact of fishing can be divided into issues that involve the availability of fish to be caught, such as overfishing , sustainable fisheries , and fisheries management ; and issues that involve
6355-516: A wide range of ground movements, such as rockfalls , mudflows , shallow or deep-seated slope failures and debris flows . Landslides occur in a variety of environments, characterized by either steep or gentle slope gradients, from mountain ranges to coastal cliffs or even underwater, in which case they are called submarine landslides . Gravity is the primary driving force for a landslide to occur, but there are other factors affecting slope stability that produce specific conditions that make
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6510-461: A wide range of species, including many endangered animals , ranging from birds to rhinos and tigers. Since 2000, 47% of deforestation has been for the purpose of growing oil palm plantations, with around 877,000 acres being affected per year. Natural forests are extremely biodiverse , with a wide range of organisms using them as their habitat. But oil palm plantations are the opposite. Studies have shown that oil palm plantations have less than 1% of
6665-540: Is a concern, especially where intensive livestock production is carried out. In the US, in a comparison of 32 industries, the livestock industry was found to have a relatively good record of compliance with environmental regulations pursuant to the Clean Water Act and Clean Air Act, but pollution issues from large livestock operations can sometimes be serious where violations occur. Various measures have been suggested by
6820-661: Is a depression or hole in the ground caused by some form of collapse of the surface layer. When natural erosion, human mining or underground excavation makes the ground too weak to support the structures built on it, the ground can collapse and produce a sinkhole . Coastal erosion is a physical process by which shorelines in coastal areas around the world shift and change, primarily in response to waves and currents that can be influenced by tides and storm surge. Coastal erosion can result from long-term processes (see also beach evolution ) as well as from episodic events such as tropical cyclones or other severe storm events. Coastal erosion
6975-470: Is a growing gap between how many fish are available to be caught and humanity's desire to catch them, a problem that gets worse as the world population grows. Similar to other environmental issues , there can be conflict between the fishermen who depend on fishing for their livelihoods and fishery scientists who realize that if future fish populations are to be sustainable then some fisheries must reduce or even close. The journal Science published
7130-522: Is a non-profit organisation that has developed criteria that its members (of which, as of 2018, there are over 4,000) must follow to produce, source and use sustainable palm oil (Certified Sustainable Palm Oil; CSPO). Currently, 19% of global palm oil is certified by the RSPO as sustainable. The CSPO criteria states that oil palm plantations cannot be grown in the place of forests or other areas with endangered species, fragile ecosystems, or those that facilitate
7285-814: Is a result of a natural hazard impacting a vulnerable community . But disasters can be avoided. Earthquakes, droughts, floods, storms, and other events lead to disasters because of human action and inaction. Poor land and policy planning and deregulation can create worse conditions. They often involve development activities that ignore or fail to reduce the disaster risks . Nature alone is blamed for disasters even when disasters result from failures in development. Disasters also result from failure of societies to prepare. Examples for such failures include inadequate building norms, marginalization of people, inequities, overexploitation of resources, extreme urban sprawl and climate change . Defining disasters as solely natural events has serious implications when it comes to understanding
7440-622: Is a significant factor in contemporary biodiversity loss . A 2021 report in Frontiers in Conservation Science proposed that population size and growth are significant factors in biodiversity loss , soil degradation and pollution . Some scientists and environmentalists, including Pentti Linkola , Jared Diamond and E. O. Wilson , posit that human population growth is devastating to biodiversity . Wilson for example, has expressed concern that when Homo sapiens reached
7595-563: Is also a third type of familial relationship applied to godparents or adoptive children ( fictive ). These culturally defined relationships are referred to as kinship. In many societies, it is one of the most important social organizing principles and plays a role in transmitting status and inheritance . All societies have rules of incest taboo , according to which marriage between certain kinds of kin relations are prohibited; and some societies also have rules of preferential marriage with certain other kin relations. Human ethnic groups are
7750-444: Is based on the farmer's production methods, and "effect-based", which is the impact that farming methods have on the farming system or on emissions to the environment. An example of a means-based indicator would be the quality of groundwater that is affected by the amount of nitrogen applied to the soil . An indicator reflecting the loss of nitrate to groundwater would be effect-based. The environmental impact of agriculture involves
7905-403: Is currently contributing relatively little to global warming. Although reduction of methane emissions would have a rapid effect on warming, the expected effect would be small. Other anthropogenic GHG emissions associated with livestock production include carbon dioxide from fossil fuel consumption (mostly for production, harvesting and transport of feed), and nitrous oxide emissions associated with
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#17327800991678060-557: Is mostly focused on processing raw materials into finished products. Present-day societies vary in their degree of industrialization, with some using mostly newer energy sources (e.g. coal, oil , and nuclear energy ), and others continuing to rely on human and animal power. Industrialization is associated with population booms and the growth of cities. Increased productivity, as well as the stability caused by improved transportation, leads to decreased mortality and resulting population growth. Centralized production of goods in factories and
8215-567: Is no recycling facility, plastics have flooded the camps' streets and surroundings. In contrast, the Azraq camp in Jordan for refugees from Syria has waste management services; of 20.7 tonnes of waste produced per day, 15% is recyclable. Because of the social, political and cultural context of many places throughout the world, women are often disproportionately affected by disaster. In the 2004 Indian Ocean tsunami, more women died than men, partly due to
8370-654: Is now also used in food, cosmetic and other types of products in other nations as well. Over one-third of vegetable oil consumed globally is palm oil. The consumption of palm oil in food, domestic and cosmetic products all over the world means there is a high demand for it. To meet this, oil palm plantations are created, which means removing natural forests to clear space. This deforestation has taken place in Asia, Latin America and West Africa, with Malaysia and Indonesia holding 90% of global oil palm trees. These forests are home to
8525-512: Is one of the most significant coastal hazards. It forms a threat to infrastructure, capital assets and property. Volcanoes can cause widespread destruction and consequent disaster in several ways. One hazard is the volcanic eruption itself, with the force of the explosion and falling rocks able to cause harm. Lava may also be released during the eruption of a volcano; as it leaves the volcano, it can destroy buildings, plants and animals due to its extreme heat. In addition, volcanic ash may form
8680-644: Is referred to as a "typhoon"; a "cyclone" occurs in the South Pacific and Indian Ocean. The deadliest hurricane ever was the 1970 Bhola cyclone ; the deadliest Atlantic hurricane was the Great Hurricane of 1780 , which devastated Martinique, St. Eustatius and Barbados. Another notable hurricane is Hurricane Katrina , which devastated the Gulf Coast of the United States in 2005. Hurricanes may become more intense and produce more heavy rainfall as
8835-418: Is seen as a characteristic that differentiates humans from other animals. Trade has even been cited as a practice that gave Homo sapiens a major advantage over other hominids; evidence suggests early H. sapiens made use of long-distance trade routes to exchange goods and ideas, leading to cultural explosions and providing additional food sources when hunting was sparse. Such trade networks did not exist for
8990-510: Is similar to hunter-gatherers (about 50 individuals), but unlike hunter gatherers, pastoral societies usually consist of multiple communities—the average pastoral society contains thousands of people. This is because pastoral groups tend to live in open areas where movement is easy, which enables political integration. Pastoral societies tend to create a food surplus, and have specialized labor and high levels of inequality. Fruits and vegetables grown in garden plots, that have been cleared from
9145-418: Is still not the best option) is through agroforestry , whereby the plantations are made up of multiple types of plants used in trade – such as coffee or cocoa . While these are more biodiverse than monoculture plantations, they are still not as effective as natural forests. In addition to this, agroforestry does not bring as many economic benefits to workers, their families and the surrounding areas. The RSPO
9300-471: Is the most important driver of economic losses. However, part of these are also due to human-induced climate change . During emergencies such as natural disasters and armed conflicts more waste may be produced, while waste management is given low priority compared with other services. Existing waste management services and infrastructures can be disrupted, leaving communities with unmanaged waste and increased littering. Under these circumstances human health and
9455-482: The Agricultural Revolution but also applies broadly to all major human impacts on the environment. Many of the actions taken by humans that contribute to a heated environment stem from the burning of fossil fuel from a variety of sources, such as: electricity, cars, planes, space heating, manufacturing, or the destruction of forests. Overconsumption is a situation where resource use has outpaced
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#17327800991679610-540: The Japanese Ministry of the Environment . Some of this waste, mostly plastic and styrofoam washed up on the coasts of Canada and the United States in late 2011. Along the west coast of the United States, this increased the amount of litter by a factor of 10 and may have transported alien species. Storms are also important generators of plastic litter. A study by Lo et al. (2020) reported a 100% increase in
9765-624: The Spitak Earthquake ). The Asia-Pacific region is the world's most disaster prone region. A person in Asia-Pacific is five times more likely to be hit by a natural disaster than someone living in other regions. Between 1995 and 2015, the greatest number of natural disasters occurred in America, China and India. In 2012, there were 905 natural disasters worldwide, 93% of which were weather-related disasters. Overall costs were US$ 170 billion and insured losses $ 70 billion. 2012
9920-516: The amphibian crisis being a few broader examples of an almost universal, cosmopolitan decline in biodiversity. Human overpopulation (and continued population growth ) along with overconsumption , especially by the super- affluent , are considered to be the primary drivers of this rapid decline. The 2017 World Scientists' Warning to Humanity stated that, among other things, this sixth extinction event unleashed by humanity could annihilate many current life forms and consign them to extinction by
10075-462: The common good or in the name of the public interest , but as property they own. Caste systems , as historically found in South Asia, are associated with agrarian societies, where lifelong agricultural routines depend upon a rigid sense of duty and discipline. The scholar Donald Brown suggests that an emphasis in the modern West on personal liberties and freedoms was in large part a reaction to
10230-589: The extinction of species at an alarming rate. Humans are the cause of the current mass extinction , called the Holocene extinction , driving extinctions to 100 to 1000 times the normal background rate. Though most experts agree that human beings have accelerated the rate of species extinction, some scholars have postulated without humans, the biodiversity of the Earth would grow at an exponential rate rather than decline. The Holocene extinction continues, with meat consumption , overfishing , ocean acidification and
10385-528: The extinction of wildlife; and pollution. It is defined as any change or disturbance to the environment perceived to be deleterious or undesirable. As indicated by the I=PAT equation, environmental impact (I) or degradation is caused by the combination of an already very large and increasing human population (P), continually increasing economic growth or per capita affluence (A), and the application of resource-depleting and polluting technology (T). According to
10540-424: The means of production . Symbolic interactionism is a microsociological theory that focuses on individuals and how the individual relates to society. Symbolic interactionists study humans' use of shared language to create common symbols and meanings, and use this frame of reference to understand how individuals interact to create symbolic worlds, and in turn, how these worlds shape individual behaviors . In
10695-538: The 2019 Global Assessment Report on Biodiversity and Ecosystem Services by IPBES also warns that ever increasing land use for meat production plays a significant role in biodiversity loss. A 2006 Food and Agriculture Organization report, Livestock's Long Shadow , found that around 26% of the planet's terrestrial surface is devoted to livestock grazing. Palm oil is a type of vegetable oil, found in oil palm trees, which are native to West and Central Africa. Initially used in foods in developing countries, palm oil
10850-598: The FAO estimated that 18% of global anthropogenic GHG (greenhouse gas) emissions (estimated as 100-year carbon dioxide equivalents) are associated in some way with livestock production. FAO data indicate that meat accounted for 26% of global livestock product tonnage in 2011. Globally, enteric fermentation (mostly in ruminant livestock) accounts for about 27% of anthropogenic methane emissions , Despite methane's 100-year global warming potential , recently estimated at 28 without and 34 with climate-carbon feedbacks, methane emission
11005-650: The Gulf of Mexico and traveled north, causing damage in 26 American states as well as in Canada and leading to more than 300 deaths. Society A society ( / s ə ˈ s aɪ ə t i / ) is a group of individuals involved in persistent social interaction or a large social group sharing the same spatial or social territory , typically subject to the same political authority and dominant cultural expectations. Societies are characterized by patterns of relationships ( social relations ) between individuals who share
11160-414: The National Risk Index of FEMA: avalanche , coastal flooding , cold wave , drought , earthquake , hail , heat wave , tropical cyclone , ice storm , landslide , lightning , riverine flooding, strong wind, tornado , tsunami , volcanic activity , wildfire , winter weather. In addition, there are also dust storms . The term natural disaster has been called a misnomer already in 1976. A disaster
11315-854: The UN Environment Programme) estimated that 6 million hectares of agricultural land per year had been lost to soil degradation since the mid-1940s, and she noted that this magnitude is similar to earlier estimates by Dudal and by Rozanov et al. Such losses are attributable not only to soil erosion , but also to salinization, loss of nutrients and organic matter, acidification, compaction, water logging and subsidence. Human-induced land degradation tends to be particularly serious in dry regions. Focusing on soil properties, Oldeman estimated that about 19 million square kilometers of global land area had been degraded; Dregne and Chou, who included degradation of vegetation cover as well as soil, estimated about 36 million square kilometers degraded in
11470-694: The US Environmental Protection Agency, among others, which can help reduce livestock damage to streamwater quality and riparian environments. Changes in livestock production practices influence the environmental impact of meat production, as illustrated by some beef data. In the US beef production system, practices prevailing in 2007 are estimated to have involved 8.6% less fossil fuel use, 16% less greenhouse gas emissions (estimated as 100-year carbon dioxide equivalents), 12% less withdrawn water use and 33% less land use, per unit mass of beef produced, than in 1977. From 1980 to 2012 in
11625-760: The US, sampling for erosion estimates by the US NRCS (Natural Resources Conservation Service) is statistically based, and estimation uses the Universal Soil Loss Equation and Wind Erosion Equation . For 2010, annual average soil loss by sheet, rill and wind erosion on non-federal US land was estimated to be 10.7 t/ha on cropland and 1.9 t/ha on pasture land; the average soil erosion rate on US cropland had been reduced by about 34% since 1982. No-till and low-till practices have become increasingly common on North American cropland used for production of grains such as wheat and barley. On uncultivated cropland,
11780-627: The US, while population increased by 38%, the small ruminant inventory decreased by 42%, the cattle-and-calves inventory decreased by 17%, and methane emissions from livestock decreased by 18%; yet despite the reduction in cattle numbers, US beef production increased over that period. Some impacts of meat-producing livestock may be considered environmentally beneficial . These include waste reduction by conversion of human-inedible crop residues to food, use of livestock as an alternative to herbicides for control of invasive and noxious weeds and other vegetation management, use of animal manure as fertilizer as
11935-439: The United States, the richest tenth of humans hold more than seven-tenths of those regions' total wealth. The willingness of humans to kill other members of their species en masse through organized conflict (i.e. war) has long been the subject of debate. One school of thought is that war evolved as a means to eliminate competitors, and that violence is an innate human characteristic. Humans commit violence against other humans at
12090-437: The ability to change affiliation with social groups relatively easily, including leaving groups with previously strong alliances, if doing so is seen as providing personal advantages. Ethnicity is separate from the concept of race , which is based on physical characteristics, although both are socially constructed . Assigning ethnicity to a certain population is complicated, as even within common ethnic designations there can be
12245-682: The access to electronic information resources increased at the beginning of the 21st century, special attention was extended from the information society to the knowledge society. A knowledge society generates, shares, and makes available to all members of the society knowledge that may be used to improve the human condition . A knowledge society differs from an information society in that it transforms information into resources that allow society to take effective action, rather than only creating and disseminating raw data . Social norms are shared standards of acceptable behavior by groups. Social norms, which can both be informal understandings that govern
12400-452: The aftermath of the disaster can lead to a significant increase in maternal morbidity and mortality. Furthermore, shortage of healthcare resources during this time can convert even routine obstetric complications into emergencies. Once a vulnerable population has experienced a disaster, the community can take many years to repair and that repair period can lead to further vulnerability. The disastrous consequences of natural disaster also affect
12555-550: The amount of microplastics on beaches surveyed following a typhoon in Hong Kong in 2018. A significant amount of plastic waste can be produced during disaster relief operations. Following the 2010 earthquake in Haiti , the generation of waste from relief operations was referred to as a "second disaster". The United States military reported that millions of water bottles and styrofoam food packages were distributed although there
12710-506: The amount of water use assignable to such production is seldom estimated. For example, "green water" use is evapotranspirational use of soil water that has been provided directly by precipitation; and "green water" has been estimated to account for 94% of global beef cattle production's " water footprint ", and on rangeland, as much as 99.5% of the water use associated with beef production is "green water". Impairment of water quality by manure and other substances in runoff and infiltrating water
12865-453: The behavior of members of a society, as well as be codified into rules and laws, are powerful drivers of human behavior. Social roles are norms, duties , and patterns of behavior that relate to an individual's social status. In functionalist thought, individuals form the structure of society by occupying social roles. According to symbolic interactionism, individuals use symbols to navigate and communicate roles. Erving Goffman used
13020-430: The capability to capture and move ice, rocks, and trees. Avalanches occur in two general forms, or combinations thereof: slab avalanches made of tightly packed snow, triggered by a collapse of an underlying weak snow layer, and loose snow avalanches made of looser snow. After being set off, avalanches usually accelerate rapidly and grow in mass and volume as they capture more snow. If an avalanche moves fast enough, some of
13175-433: The causes of a disaster and the distribution of political and financial responsibility in disaster risk reduction , disaster management , compensation, insurance and disaster prevention. Using natural to describe disasters misleads people to think the devastating results are inevitable, out of our control, and are simply part of a natural process. Hazards (earthquakes, hurricanes, pandemics, drought etc.) are inevitable, but
13330-417: The changes in quantity and quality of soil and water as a result of irrigation and the ensuing effects on natural and social conditions at the tail-end and downstream of the irrigation scheme. The impacts stem from the changed hydrological conditions owing to the installation and operation of the scheme. An irrigation scheme often draws water from the river and distributes it over the irrigated area. As
13485-410: The concept of information society has been discussed since the 1930s, in the present day, it is almost always applied to ways that information technologies impact society and culture. It therefore covers the effects of computers and telecommunications on the home, the workplace, schools, government, and various communities and organizations, as well as the emergence of new social forms in cyberspace. As
13640-498: The consequences of habitat fragmentation is important for the preservation of biodiversity and enhancing the functioning of the ecosystem. Both agricultural plants and animals depend on pollination for reproduction. Vegetables and fruits are an important diet for human beings and depend on pollination. Whenever there is habitat destruction, pollination is reduced and crop yield as well. Many plants also rely on animals and most especially those that eat fruit for seed dispersal. Therefore,
13795-610: The country. As a result, many desalination plants were built for the first time ( see list ). In 2011, the State of Texas lived under a drought emergency declaration for the entire calendar year and suffered severe economic losses. The drought caused the Bastrop fires. Wildfires are large fires which often start in wildland areas. Common causes include lightning and drought but wildfires may also be started by human negligence or arson . They can spread to populated areas and thus be
13950-586: The daily collection of wild plants and the hunting of wild animals. Hunter-gatherers move around constantly in search of food. As a result, they do not build permanent villages or create a wide variety of artifacts . The need for mobility also limits the size of these societies, and they usually only form small groups such as bands and tribes , usually with fewer than 50 people per community. Bands and tribes are relatively egalitarian , and decisions are reached through consensus . There are no formal political offices containing real power in band societies, rather
14105-405: The damage is depends on how well people are prepared for disasters and how strong the buildings, roads, and other structures are. Scholars have been saying that the term natural disaster is unsuitable and should be abandoned. Instead, the simpler term disaster could be used. At the same time the type of hazard would be specified. A disaster happens when a natural or human-made hazard impacts
14260-468: The damage typically associated with storms, such as winds, hail and flooding, the lightning itself can damage buildings, ignite fires and kill by direct contact. Most deaths from lightning occur in the poorer countries of the Americas and Asia, where lightning is common and adobe mud brick housing provides little protection. Typhoon , cyclone , cyclonic storm and hurricane are different names for
14415-451: The destruction of habitat for animal severely affects all the plant species that depend on them. Biodiversity generally refers to the variety and variability of life on Earth, and is represented by the number of different species there are on the planet. Since its introduction, Homo sapiens (the human species) has been killing off entire species either directly (such as through hunting) or indirectly (such as by destroying habitats ), causing
14570-441: The earthquake is called the seismic focus . The point directly above the focus on the surface is called the epicenter . Earthquakes by themselves rarely kill people or wildlife – it is usually the secondary events that they trigger, such as building collapse, fires, tsunamis and volcanic eruptions, that cause death. Many of these can possibly be avoided by better construction, safety systems, early warning and planning. A sinkhole
14725-542: The end of this century. A 2022 scientific review published in Biological Reviews confirms that a biodiversity loss crisis caused by human activity, which the researchers describe as a sixth mass extinction event, is currently underway. A June 2020 study published in PNAS argues that the contemporary extinction crisis "may be the most serious environmental threat to the persistence of civilization, because it
14880-590: The environment (or anthropogenic environmental impact ) refers to changes to biophysical environments and to ecosystems , biodiversity , and natural resources caused directly or indirectly by humans . Modifying the environment to fit the needs of society (as in the built environment ) is causing severe effects including global warming , environmental degradation (such as ocean acidification ), mass extinction and biodiversity loss , ecological crisis , and ecological collapse . Some human activities that cause damage (either directly or indirectly) to
15035-496: The environment are often negatively impacted. Natural disasters (e.g. earthquakes, tsunamis, hurricanes) have the potential to generate a significant amount of waste within a short period. Waste management systems can be out of action or curtailed, often requiring considerable time and funding to restore. For example, the tsunami in Japan in 2011 produced huge amounts of debris: estimates of 5 million tonnes of waste were reported by
15190-468: The environment on a global scale include population growth , neoliberal economic policies and rapid economic growth , overconsumption , overexploitation , pollution , and deforestation . Some of the problems, including global warming and biodiversity loss, have been proposed as representing catastrophic risks to the survival of the human species. The term anthropogenic designates an effect or object resulting from human activity . The term
15345-457: The environment, and its effects on food security . It is estimated that up to 40% of the world's agricultural land is seriously degraded. Biomass of mammals on Earth Environmental impacts associated with meat production include use of fossil energy , water and land resources, greenhouse gas emissions, and in some instances, rainforest clearing, water pollution and species endangerment, among other adverse effects. Steinfeld et al. of
15500-624: The event that it significantly harms a community. An example of the distinction between a natural hazard and a disaster is that an earthquake is the hazard which caused the 1906 San Francisco earthquake disaster. A natural hazard is a natural phenomenon that might have a negative effect on humans and other animals , or the environment . Natural hazard events can be classified into two broad categories: geophysical and biological . Natural hazards can be provoked or affected by anthropogenic processes , e.g. land-use change , drainage and construction. There are 18 natural hazards included in
15655-430: The eventual loss of resource bases. Humanity's overall impact on the planet is affected by many factors, not just the raw number of people. Their lifestyle (including overall affluence and resource use) and the pollution they generate (including carbon footprint ) are equally important. In 2008, The New York Times stated that the inhabitants of the developed nations of the world consume resources like oil and metals at
15810-438: The exposure and vulnerability of a community." The US Federal Emergency Management Agency (FEMA) explains the relationship between natural disasters and natural hazards as follows: "Natural hazards and natural disasters are related but are not the same. A natural hazard is the threat of an event that will likely have a negative impact. A natural disaster is the negative impact following an actual occurrence of natural hazard in
15965-553: The fact that fewer women knew how to swim. During and after a natural disaster, women are at increased risk of being affected by gender based violence and are increasingly vulnerable to sexual violence. Disrupted police enforcement, lax regulations, and displacement all contribute to increased risk of gender based violence and sexual assault. In addition to LGBT people and immigrants , women are also disproportionately victimized by religion-based scapegoating for natural disasters: fanatical religious leaders or adherents may claim that
16120-408: The findings, although the debate continues. Many countries, such as Tonga, the United States, Australia and New Zealand, and international management bodies have taken steps to appropriately manage marine resources. The UN's Food and Agriculture Organization (FAO) released their biennial State of World Fisheries and Aquaculture in 2018 noting that capture fishery production has remained constant for
16275-441: The form of a visible condensation funnel , the narrow end of which touches the Earth and is often encircled by a cloud of debris and dust . Tornadoes can occur one at a time, or can occur in large tornado outbreaks associated with supercells or in other large areas of thunderstorm development. Most tornadoes have wind speeds of less than 180 km/h (110 mph), are approximately 75 m (250 ft) across, and travel
16430-572: The functionalist school of thought, individuals in society work together like organs in the body to create emergent behavior, sometimes referred to as collective consciousness . 19th century sociologists Auguste Comte and Émile Durkheim , for example, believed that society constitutes a separate "level" of reality, distinct from both biological and inorganic matter. Explanations of social phenomena had therefore to be constructed within this level, individuals being merely transient occupants of comparatively stable social roles. Conflict theorists take
16585-537: The further development of governance within and between communities. As of 2022 , according to The Economist , 43% of national governments were democracies , 35% autocracies , and 22% containing elements of both. Many countries have formed international political organizations and alliances, the largest being the United Nations with 193 member states. Trade, the voluntary exchange of goods and services, has long been an aspect of human societies, and it
16740-430: The general well-being of humans in hunter gatherer societies challenges the purported relationship between technological advancement and human progress . Rather than searching for food on a daily basis, members of a pastoral society rely on domesticated herd animals to meet their food needs. Pastoralists typically live a nomadic life, moving their herds from one pasture to another. Community size in pastoral societies
16895-422: The global population rises to more than 9 billion, which will be a significant driver of further biodiversity loss and increased Greenhouse gas emissions. Some scholars, environmentalists and advocates have linked human population growth or population size as a driver of environmental issues, including some suggesting this indicates an overpopulation scenario. In 2017, over 15,000 scientists around
17050-409: The immediate surroundings of a volcanic eruption is pyroclastic flows , consisting of a cloud of hot ash which builds up in the air above the volcano and rushes down the slopes when the eruption no longer supports the lifting of the gases. It is believed that Pompeii was destroyed by a pyroclastic flow. A lahar is a volcanic mudflow or landslide. The 1953 Tangiwai disaster was caused by a lahar, as
17205-438: The impact of fishing on other elements of the environment, such as by-catch and destruction of habitat such as coral reefs . According to the 2019 Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services report , overfishing is the main driver of mass species extinction in the oceans. These conservation issues are part of marine conservation , and are addressed in fisheries science programs. There
17360-407: The impact they have on society is not. Thus, the term natural disaster is unsuitable and should be abandoned in favor of the simpler term disaster , while also specifying the category (or type) of hazard. As of 2019, the countries with the highest share of disability-adjusted life years ( DALY ) lost due to natural disasters are Bahamas , Haiti , Zimbabwe and Armenia (probably mainly due to
17515-694: The implications of modernity , and that their analysis of non-Western cultures is therefore limited in scope. As examples of nonwestern thinkers who took a systematic approach to understanding society, al-Attas mentions Ibn Khaldun (1332–1406) and José Rizal (1861–1896). Khaldun, an Arab living in the 14th century, understood society, along with the rest of the universe, as having "meaningful configuration", with its perceived randomness attributable to hidden causes. Khaldun conceptualized social structures as having two fundamental forms: nomadic and sedentary. Nomadic life has high social cohesion ( asabijja ), which Khaldun argued arose from kinship, shared customs, and
17670-437: The jungle or forest, provide the main source of food in a horticultural society. These societies have a similar level of technology and complexity to pastoral societies. Along with pastoral societies, horticultural societies emerged about 10,000 years ago, after technological changes of the Agricultural Revolution made it possible to cultivate crops and raise animals. Horticulturists use human labor and simple tools to cultivate
17825-450: The land for one or more seasons. When the land becomes barren, horticulturists clear a new plot and leave the old plot to revert to its natural state. They may return to the original land several years later and begin the process again. By rotating their garden plots, horticulturists can stay in one area for a long period of time. This allows them to build permanent or semi-permanent villages. As with pastoral societies, surplus food leads to
17980-526: The large-scale depletion of fresh water resources such as aquifers, lakes, and rivers. As a result of this massive diversion of freshwater, lakes, rivers, and creeks are running dry, severely altering or stressing surrounding ecosystems, and contributing to the extinction of many aquatic species. Lal and Stewart estimated global loss of agricultural land by degradation and abandonment at 12 million hectares per year. In contrast, according to Scherr, GLASOD (Global Assessment of Human-Induced Soil Degradation, under
18135-409: The last 100 years, due to the increased development of countries, increased preparedness, better education, better methods, and aid from international organizations. Since the global population has grown over the same time period, the decrease in number of deaths per capita is larger, dropping to 6% of the original amount. The death rate from natural disasters is highest in developing countries due to
18290-517: The last two decades but unsustainable overfishing has increased to 33% of the world's fisheries. They also noted that aquaculture, the production of farmed fish, has increased from 120 million tonnes per year in 1990 to over 170 million tonnes in 2018. Populations of oceanic sharks and rays have been reduced by 71% since 1970, largely due to overfishing. More than three-quarters of the species comprising this group are now threatened with extinction. The environmental impact of irrigation includes
18445-520: The latter half of the 20th century, theorists began to view society as socially constructed . In this vein, sociologist Peter L. Berger describes society as "dialectic": Society is created by humans, but this creation turns in turn creates or molds humans. The sociologic emphasis placed on functionalism, conflict theory, and symbolic interactionism, has been criticized as Eurocentric . The Malaysian sociologist Syed Farid al-Attas , for example, argues that Western thinkers are particularly interested in
18600-403: The like. Some things can make natural disasters worse. Examples are inadequate building norms, marginalization of people and poor choices on land use planning . Many developing countries do not have proper disaster risk reduction systems. This makes them more vulnerable to natural disasters than high income countries . An adverse event only becomes a disaster if it occurs in an area with
18755-490: The lower quality of building construction, infrastructure, and medical facilities. Global economic losses due to extreme weather, climate and water events are increasing. Costs have increased sevenfold from the 1970s to the 2010s. Direct losses from disasters have averaged above US$ 330 billion annually between 2015 and 2021. Socio-economic factors have contributed to this trend of increasing losses, such as population growth and increased wealth. This shows that increased exposure
18910-523: The mental health of affected communities, often leading to post-traumatic symptoms. These increased emotional experiences can be supported through collective processing, leading to resilience and increased community engagement. Disasters stress government capacity, as the government tries to conduct routine as well as emergency operations. Some theorists of voting behavior propose that citizens update information about government effectiveness based on their response to disasters, which affects their vote choice in
19065-430: The metaphor of a theater to develop the dramaturgical lens , which argues that roles provide scripts that govern social interactions. The division of humans into male and female gender roles has been marked culturally by a corresponding division of norms, practices , dress , behavior , rights, duties, privileges , status , and power . Some argue that gender roles arise naturally from sex differences , which lead to
19220-407: The needs of local communities. It also calls for a reduction in pesticides and fires, along with several rules for ensuring the social wellbeing of workers and the local communities. Human activity is causing environmental degradation , which is the deterioration of the environment through depletion of resources such as air, water and soil; the destruction of ecosystems; habitat destruction ;
19375-562: The next election. Indeed, some evidence, based on data from the United States, reveals that incumbent parties can lose votes if citizens perceives them as responsible for a poor disaster response or gain votes based on perceptions of well-executed relief work. The latter study also finds, however, that voters do not reward incumbent parties for disaster preparedness , which may end up affecting government incentives to invest in such preparedness. Landslides , also known as landslips, or rockslides, are several forms of mass wasting that may include
19530-446: The now-extinct Neanderthals . Early trade involved materials for creating tools, like obsidian , exchanged over short distances. In contrast, throughout antiquity and the medieval period, some of the most influential long-distance routes carried food and luxury goods, such as the spice trade . Early human economies were more likely to be based around gift giving than a bartering system. Early money consisted of commodities ;
19685-466: The oldest being in the form of cattle and the most widely used being cowrie shells . Money has since evolved into governmental issued coins , paper and electronic money . Human study of economics is a social science that looks at how societies distribute scarce resources among different people. There are massive inequalities in the division of wealth among humans; as of 2018 in China, Europe, and
19840-514: The opposite view, and posit that individuals and social groups or social classes within society interact on the basis of conflict rather than agreement. One prominent conflict theorist is Karl Marx who conceived of society as operating on an economic "base" with a "superstructure" of government, family, religion and culture. Marx argues that the economic base determines the superstructure, and that throughout history, societal change has been driven by conflict between laborers and those who own
19995-731: The parental role of males, the use of language to communicate, the specialization of labor, and the tendency to build "nests" (multigenerational camps, town, or cities). Some biologists, including entomologist E.O. Wilson , categorize humans as eusocial , placing humans with ants in the highest level of sociability on the spectrum of animal ethology , although others disagree. Social group living may have evolved in humans due to group selection in physical environments that made survival difficult. In Western sociology, there are three dominant paradigms for understanding society: functionalism (also known as structural functionalism), conflict theory , and symbolic interactionism . According to
20150-499: The people that they govern. There have been many forms of government throughout human history, with various ways of allocating power, and with different levels and means of control over the population. In early history, distribution of political power was determined by the availability of fresh water , fertile soil , and temperate climate of different locations. As farming populations gathered in larger and denser communities, interactions between different groups increased, leading to
20305-448: The planet's landmass remains as wilderness . Habitat fragmentation is the reduction of large tracts of habitat leading to habitat loss . Habitat fragmentation and loss are considered as being the main cause of the loss of biodiversity and degradation of the ecosystem all over the world. Human actions are greatly responsible for habitat fragmentation, and loss as these actions alter the connectivity and quality of habitats. Understanding
20460-429: The plant diversity seen in natural forests, and 47–90% less mammal diversity. This is not because of the oil palm itself, but rather because the oil palm is the only habitat provided in the plantations. The plantations are therefore known as a monoculture , whereas natural forests contain a wide variety of flora and fauna, making them highly biodiverse. One of the ways palm oil could be made more sustainable (although it
20615-650: The pre-colonial era, when the Filipinos controlled trade routes and had higher economic activity, to the period of colonial rule, and argued that exploitation, economic disorder, and colonial policies that discouraged farming led to a decreased interest in work. Sociologists tend to classify societies based on their level of technology, and place societies in three broad categories: pre-industrial , industrial , and postindustrial . Subdivisions of these categories vary, and classifications are often based on level of technology, communication, and economy. One example of such
20770-484: The production of food. Agrarian societies are especially noted for their extremes of social classes and rigid social mobility. As land is the major source of wealth, social hierarchy develops based on landownership and not labor. The system of stratification is characterized by three coinciding contrasts: governing class versus the masses , urban minority versus peasant majority, and literate minority versus illiterate majority. This results in two distinct subcultures;
20925-613: The production of goods. Advanced industrial societies see a shift toward an increase in service sectors, over manufacturing. Service industries include education, health and finance. An information society is a society where the usage, creation , distribution , manipulation and integration of information is a significant activity. Proponents of the idea that modern-day global society is an information society posit that information technologies are impacting most important forms of social organization, including education, economy, health, government, warfare , and levels of democracy. Although
21080-555: The rate of homicide in band societies. However, rates of violence vary widely according to societal norms, and rates of homicide in societies that have legal systems and strong cultural attitudes against violence stand at about 0.01%. Human impact on the environment 1800s: Martineau · Tocqueville · Marx · Spencer · Le Bon · Ward · Pareto · Tönnies · Veblen · Simmel · Durkheim · Addams · Mead · Weber · Du Bois · Mannheim · Elias Human impact on
21235-404: The recent average total soil loss has been 2.2 t/ha per year. In comparison with agriculture using conventional cultivation, it has been suggested that, because no-till agriculture produces erosion rates much closer to soil production rates, it could provide a foundation for sustainable agriculture. Land degradation is a process in which the value of the biophysical environment is affected by
21390-531: The same phenomenon: a tropical storm that forms over an ocean. It is caused by evaporated water that comes off of the ocean and becomes a storm . It is characterized by strong winds, heavy rainfall and thunderstorms. The determining factor on which term is used is based on where the storm originates. In the Atlantic and Northeast Pacific, the term "hurricane" is used; in the Northwest Pacific, it
21545-450: The snow may mix with the air, forming a powder snow avalanche . An earthquake is the result of a sudden release of energy in the Earth's crust that creates seismic waves . At the Earth's surface, earthquakes manifest themselves by vibration, shaking, and sometimes displacement of the ground. Earthquakes are caused by slippage within geological faults . The underground point of origin of
21700-502: The steep and rigid stratification of agrarian societies. Industrial societies, which emerged in the 18th century in the Industrial Revolution , rely heavily on machines powered by external sources for the mass production of goods. Whereas in pre-industrial societies the majority of labor takes place in primary industries focused on extracting raw materials (farming, fishing, mining, etc.), in industrial societies, labor
21855-544: The sustainable capacity of the ecosystem. It can be measured by the ecological footprint , a resource accounting approach which compares human demand on ecosystems with the amount of planet matter ecosystems can renew. Estimates by the Global Footprint Network indicate that humanity's current demand is 70% higher than the regeneration rate of all of the planet's ecosystems combined. A prolonged pattern of overconsumption leads to environmental degradation and
22010-478: The urban elite versus the peasant masses. Moreover, this means cultural differences within agrarian societies are greater than differences between them. The landowning strata typically combine government, religious, and military institutions to justify and enforce their ownership, and support elaborate patterns of consumption, slavery , serfdom , or peonage is commonly the lot of the primary producer. Rulers of agrarian societies often do not manage their empire for
22165-461: The use of nitrogenous fertilizers, growing of nitrogen-fixing legume vegetation and manure management. Management practices that can mitigate GHG emissions from production of livestock and feed have been identified. Considerable water use is associated with meat production, mostly because of water used in production of vegetation that provides feed. There are several published estimates of water use associated with livestock and meat production, but
22320-496: The vicinity of the root zone. Irrigation can also be done extracting groundwater by (tube)wells . As a hydrological result it is found that the level of the water descends. The effects may be water mining , land/soil subsidence , and, along the coast, saltwater intrusion . Irrigation projects can have large benefits, but the negative side effects are often overlooked. Agricultural irrigation technologies such as high powered water pumps, dams, and pipelines are responsible for
22475-509: The volume of a body of water, such as a river or lake , becoming higher than usual, causing some of the water to escape its usual boundaries. While the size of a lake or other body of water will vary with seasonal changes in precipitation and snow melt, a flood is not considered significant unless the water covers land used by humans, such as a village, city or other inhabited area, roads or expanses of farmland. Severe storms, dust clouds and volcanic eruptions can generate lightning . Apart from
22630-434: The whole, industrial societies are marked by the increased power of human beings. Technological advancements mean that industrial societies have increased potential for deadly warfare. Governments use information technologies to exert greater control over the populace. Industrial societies also have an increased environmental impact. Post-industrial societies are societies dominated by information and services, rather than
22785-425: The wide variety of agricultural practices employed around the world. Ultimately, the environmental impact depends on the production practices of the system used by farmers. The connection between emissions into the environment and the farming system is indirect, as it also depends on other climate variables such as rainfall and temperature. There are two types of indicators of environmental impact: "means-based", which
22940-546: The world issued a second warning to humanity which asserted that rapid human population growth is the "primary driver behind many ecological and even societal threats." According to the Global Assessment Report on Biodiversity and Ecosystem Services , released by the United Nations ' Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services in 2019, human population growth
23095-439: The world's dry regions. Despite estimated losses of agricultural land, the amount of arable land used in crop production globally increased by about 9% from 1961 to 2012, and is estimated to have been 1.396 billion hectares in 2012. Global average soil erosion rates are thought to be high, and erosion rates on conventional cropland generally exceed estimates of soil production rates, usually by more than an order of magnitude. In
23250-708: Was a moderate year. 45% were meteorological (storms), 36% were hydrological (floods), 12% were climatological (heat waves, cold waves, droughts, wildfires) and 7% were geophysical events (earthquakes and volcanic eruptions). Between 1980 and 2011 geophysical events accounted for 14% of all natural catastrophes. Developing countries often have ineffective communication systems as well as insufficient support for disaster risk reduction and emergency management . This makes them more vulnerable to natural disasters than high income countries . Natural hazards occur across different time scales as well as area scales. Tornadoes and flash floods are rapid onset events, meaning they occur with
23405-438: Was derived from the noun socius (" comrade , friend , ally"). Humans , along with their closest relatives bonobos and chimpanzees , are highly social animals. This biological context suggests that the underlying sociability required for the formation of societies is hardwired into human nature. Human society features high degrees of cooperation, and differs in important ways from groups of chimps and bonobos, including
23560-466: Was first used in the technical sense by Russian geologist Alexey Pavlov , and it was first used in English by British ecologist Arthur Tansley in reference to human influences on climax plant communities . The atmospheric scientist Paul Crutzen introduced the term " Anthropocene " in the mid-1970s. The term is sometimes used in the context of pollution produced from human activity since the start of
23715-748: Was no operational waste management system. Over 700,000 plastic tarpaulins and 100,000 tents were required for emergency shelters. The increase in plastic waste, combined with poor disposal practices, resulted in open drainage channels being blocked, increasing the risk of disease . Conflicts can result in large-scale displacement of communities. People living under these conditions are often provided with minimal waste management facilities. Burn pits are widely used to dispose of mixed wastes, including plastics. Air pollution can lead to respiratory and other illnesses. For example, Sahrawi refugees have been living in five camps near Tindouf, Algeria for nearly 45 years. As waste collection services are underfunded and there
23870-475: Was the European Heat Wave of 2003 . The 2010 Northern Hemisphere summer resulted in severe heat waves which killed over 2,000 people. The heat caused hundreds of wildfires which led to widespread air pollution and burned thousands of square kilometers of forest. Well-known historical droughts include the 1997–2009 Millennium Drought in Australia which led to a water supply crisis across much of
24025-541: Was the 1985 Armero tragedy in which the town of Armero was buried and an estimated 23,000 people were killed. Volcanoes rated at 8 (the highest level) on the volcanic explosivity index are known as supervolcanoes . According to the Toba catastrophe theory , 75,000 to 80,000 years ago, a supervolcanic eruption at what is now Lake Toba in Sumatra reduced the human population to 10,000 or even 1,000 breeding pairs, creating
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