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52-496: Chiltern District was a local government district of Buckinghamshire in south-central England from 1974 to 2020. It was named after the Chiltern Hills on which the region sits. The two towns in the district were Amersham , where the council was based, and Chesham . The district also included the villages of Chalfont St Peter , Chalfont St Giles , Little Chalfont , Great Missenden and Prestwood . The district

104-570: A decade or so, and nitrous oxides last about 100 years. The graph gives some indication of which regions have contributed most to human-induced climate change. When these numbers are calculated per capita cumulative emissions based on then-current population the situation is shown even more clearly. The ratio in per capita emissions between industrialized countries and developing countries was estimated at more than 10 to 1. Non- OECD countries accounted for 42% of cumulative energy-related CO 2 emissions between 1890 and 2007. Over this time period,

156-517: A lack of comparability, which is problematic when monitoring progress towards targets. There are arguments for the adoption of a common measurement tool, or at least the development of communication between different tools. Emissions may be tracked over long time periods, known as historical or cumulative emissions measurements. Cumulative emissions provide some indicators of what is responsible for greenhouse gas atmospheric concentration build-up. The national accounts balance tracks emissions based on

208-862: A particular base year. Choosing between base years of 1750, 1900, 1950, and 1990 has a significant effect for most countries. Within the G8 group of countries, it is most significant for the UK, France and Germany. These countries have a long history of CO 2 emissions (see the section on Cumulative and historical emissions ). The Global Carbon Project continuously releases data about CO 2 emissions, budget and concentration. and industry (excluding cement carbonation) Gt C change Gt C Gt C Gt CO 2 (projection) Distribution of global greenhouse gas emissions based on type of greenhouse gas, without land-use change, using 100 year global warming potential (data from 2020). Total: 49.8 GtCO 2 e Carbon dioxide (CO 2 )

260-463: A quarterly cycle, at a public meeting. This was done in conjunction with Chiltern District Council's Community Safety Team and Chiltern Community Forum , and in line with the obligation to consult laid down by the Police Reform and Social Responsibility Act 2011. In advance of the meeting, residents were invited to make their views and priorities known through a very short survey. Results from

312-483: A significant contributor to warming. Although CFCs are greenhouse gases, they are regulated by the Montreal Protocol which was motivated by CFCs' contribution to ozone depletion rather than by their contribution to global warming. Ozone depletion has only a minor role in greenhouse warming, though the two processes are sometimes confused in the media. In 2016, negotiators from over 170 nations meeting at

364-461: A significant margin, Asia's and the world's largest emitter: it emits nearly 10 billion tonnes each year, more than one-quarter of global emissions. Other countries with fast growing emissions are South Korea , Iran, and Australia (which apart from the oil rich Persian Gulf states, now has the highest per capita emission rate in the world). On the other hand, annual per capita emissions of the EU-15 and

416-576: A two-tier arrangement. Non-metropolitan districts with borough status are known as boroughs , able to appoint a mayor and refer to itself as a borough council. Some shire counties now have no sub divisions so are a single Non-metropolitan district such as Cornwall. Typically a district will consist of a market town and its more rural hinterland. However districts are diverse with some being mostly urban such as Dartford, and others more polycentric such as Thurrock. Non-metropolitan districts are subdivisions of English non-metropolitan counties which have

468-461: A two-tier structure of local government. Two-tier non-metropolitan counties have a county council and several districts, each with a borough or district council. In these cases local government functions are divided between county and district councils, to the level where they can be practised most efficiently: Many districts have borough status , which means the local council is called a borough council instead of district council and gives them

520-410: A unitary authority or those that transferred from one county to another, including those that changed name. Nor does it include unitary authorities that have been abolished ( Bournemouth and Poole ). Greenhouse gas emissions Carbon dioxide (CO 2 ) is the main greenhouse gas resulting from human activities. It accounts for more than half of warming. Methane (CH 4 ) emissions have almost

572-708: A very short section of the M25 in the south-eastern corner near Chalfont St Peter. The major roads through the district were the A413 , running north-west towards Aylesbury , and the A404 , running west towards High Wycombe ; both roads meet in Amersham. Railway services were provided by Chiltern Railways and London Underground 's Metropolitan line . The Great Central Main Line carried traffic between London and Manchester until 1966;

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624-446: Is agriculture , closely followed by gas venting and fugitive emissions from the fossil-fuel industry . The largest agricultural methane source is livestock . Agricultural soils emit nitrous oxide partly due to fertilizers . Similarly, fluorinated gases from refrigerants play an outsized role in total human emissions. The current CO 2 -equivalent emission rates averaging 6.6 tonnes per person per year, are well over twice

676-450: Is a framework of methods to measure and track how much greenhouse gas an organization emits. Cumulative anthropogenic (i.e., human-emitted) emissions of CO 2 from fossil fuel use are a major cause of global warming , and give some indication of which countries have contributed most to human-induced climate change. In particular, CO 2 stays in the atmosphere for at least 150 years and up to 1000 years, whilst methane disappears within

728-421: Is exported. In comparison, methane has not increased appreciably, and N 2 O by 0.25% y . Using different base years for measuring emissions has an effect on estimates of national contributions to global warming. This can be calculated by dividing a country's highest contribution to global warming starting from a particular base year, by that country's minimum contribution to global warming starting from

780-454: Is the dominant emitted greenhouse gas, while methane ( CH 4 ) emissions almost have the same short-term impact. Nitrous oxide (N 2 O) and fluorinated gases (F-gases) play a lesser role in comparison. Greenhouse gas emissions are measured in CO 2 equivalents determined by their global warming potential (GWP), which depends on their lifetime in the atmosphere. Estimations largely depend on

832-563: Is the first major source of greenhouse gas emissions from transportation, followed by aircraft and maritime. Waterborne transportation is still the least carbon-intensive mode of transportation on average, and it is an essential link in sustainable multimodal freight supply chains . Buildings, like industry, are directly responsible for around one-fifth of greenhouse gas emissions, primarily from space heating and hot water consumption. When combined with power consumption within buildings, this figure climbs to more than one-third. Within

884-665: Is very complex, and is affected by how carbon sinks are allocated between regions and the dynamics of the climate system . The graphic shows the logarithm of 1850–2019 fossil fuel CO 2 emissions; natural log on left, actual value of Gigatons per year on right. Although emissions increased during the 170-year period by about 3% per year overall, intervals of distinctly different growth rates (broken at 1913, 1945, and 1973) can be detected. The regression lines suggest that emissions can rapidly shift from one growth regime to another and then persist for long periods of time. The most recent drop in emissions growth – by almost 3 percentage points –

936-604: The District Councils' Network , special interest group which sits within the Local Government Association . The network's purpose is to "act as an informed and representative advocate for districts to government and other national bodies, based on their unique position to deliver for local people." This is a list of two-tier non-metropolitan counties and their districts. All unitary authorities are also non-metropolitan districts, which, with

988-719: The list of civil parishes in Buckinghamshire Chiltern District Council was initially based at the former Amersham Rural District Council offices at Elmodesham House, 42 High Street, Amersham, with the former Chesham Urban District Council's offices at 80–82 The Broadway, High Street, Chesham serving as additional office space. In 1986 the council consolidated its offices into a purpose-built headquarters on King George V Road in Amersham, remaining there until its abolition in 2020. There were no motorways in Chiltern District, except for

1040-520: The 2030 Paris Agreement increase of 1.5 °C (2.7 °F) over pre-industrial levels. While cities are sometimes considered to be disproportionate contributors to emissions, per-capita emissions tend to be lower for cities than the averages in their countries. A 2017 survey of corporations responsible for global emissions found that 100 companies were responsible for 71% of global direct and indirect emissions , and that state-owned companies were responsible for 59% of their emissions. China is, by

1092-530: The 4th highest average carbon emissions in the country at 7,421 kg of carbon dioxide per dwelling. 51°39′38″N 0°38′27″W  /  51.6606°N 0.6409°W  / 51.6606; -0.6409 Non-metropolitan district Non-metropolitan districts , or colloquially " shire districts ", are a type of local government district in England. As created, they are sub-divisions of non-metropolitan counties (colloquially shire counties ) in

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1144-498: The EU, the agricultural sector presently accounts for roughly 10% of total greenhouse gas emissions, with methane from livestock accounting for slightly more than half of 10%. Estimates of total CO 2 emissions do include biotic carbon emissions, mainly from deforestation. Including biotic emissions brings about the same controversy mentioned earlier regarding carbon sinks and land-use change. The actual calculation of net emissions

1196-526: The Earth can cool off. The major anthropogenic (human origin) sources of greenhouse gases are carbon dioxide (CO 2 ), nitrous oxide ( N 2 O ), methane and three groups of fluorinated gases ( sulfur hexafluoride ( SF 6 ), hydrofluorocarbons (HFCs) and perfluorocarbons (PFCs, sulphur hexafluoride (SF 6 ), and nitrogen trifluoride (NF 3 )). Though the greenhouse effect is heavily driven by water vapor , human emissions of water vapor are not

1248-718: The US accounted for 28% of emissions; the EU, 23%; Japan, 4%; other OECD countries 5%; Russia, 11%; China, 9%; India, 3%; and the rest of the world, 18%. The European Commission adopted a set of legislative proposals targeting a reduction of the CO 2 emissions by 55% by 2030. Overall, developed countries accounted for 83.8% of industrial CO 2 emissions over this time period, and 67.8% of total CO 2 emissions. Developing countries accounted for industrial CO 2 emissions of 16.2% over this time period, and 32.2% of total CO 2 emissions. However, what becomes clear when we look at emissions across

1300-552: The US are gradually decreasing over time. Emissions in Russia and Ukraine have decreased fastest since 1990 due to economic restructuring in these countries. 2015 was the first year to see both total global economic growth and a reduction of carbon emissions. Annual per capita emissions in the industrialized countries are typically as much as ten times the average in developing countries. Due to China's fast economic development, its annual per capita emissions are quickly approaching

1352-419: The ability of oceans and land sinks to absorb these gases. Short-lived climate pollutants (SLCPs) including methane, hydrofluorocarbons (HFCs) , tropospheric ozone and black carbon persist in the atmosphere for a period ranging from days to 15 years; whereas carbon dioxide can remain in the atmosphere for millennia. Reducing SLCP emissions can cut the ongoing rate of global warming by almost half and reduce

1404-454: The areas for Wales and England had been enacted separately and there were no Welsh metropolitan areas, the term 'non-metropolitan district' does not apply to Wales. A similar system existed in Scotland , which in 1975 was divided into regions and districts, this was also abolished in 1996 and replaced with a fully unitary system . In England most of the district councils are represented by

1456-516: The case of Jupiter , or from its host star as in the case of the Earth . In the case of Earth, the Sun emits shortwave radiation ( sunlight ) that passes through greenhouse gases to heat the Earth's surface. In response, the Earth's surface emits longwave radiation that is mostly absorbed by greenhouse gases. The absorption of longwave radiation prevents it from reaching space, reducing the rate at which

1508-667: The concentration of carbon dioxide and other greenhouse gases. Emissions have grown rapidly since about 1950 with ongoing expansions in global population and economic activity following World War II. As of 2021, measured atmospheric concentrations of carbon dioxide were almost 50% higher than pre-industrial levels. The main sources of greenhouse gases due to human activity (also called carbon sources ) are: Global greenhouse gas emissions are about 50 Gt per year and for 2019 have been estimated at 57 Gt CO 2 eq including 5 Gt due to land use change. In 2019, approximately 34% [20 GtCO 2 -eq] of total net anthropogenic GHG emissions came from

1560-413: The difference between a country's exports and imports. For many richer nations, the balance is negative because more goods are imported than they are exported. This result is mostly due to the fact that it is cheaper to produce goods outside of developed countries, leading developed countries to become increasingly dependent on services and not goods. A positive account balance would mean that more production

1612-440: The energy supply sector, 24% [14 GtCO 2 -eq] from industry, 22% [13 GtCO 2 -eq]from agriculture, forestry and other land use (AFOLU), 15% [8.7 GtCO 2 -eq] from transport and 6% [3.3 GtCO 2 -eq] from buildings. Global carbon dioxide emissions by country in 2023: The current CO 2 -equivalent emission rates averaging 6.6 tonnes per person per year, are well over twice the estimated rate 2.3 tons required to stay within

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1664-489: The entire life cycle from the production of a good or service along the supply chain to its final consumption. Carbon accounting (or greenhouse gas accounting) is a framework of methods to measure and track how much greenhouse gas an organization emits. The greenhouse effect occurs when greenhouse gases in a planet's atmosphere insulate the planet from losing heat to space, raising its surface temperature. Surface heating can happen from an internal heat source as in

1716-414: The estimated rate 2.3 tons required to stay within the 2030 Paris Agreement increase of 1.5 °C (2.7 °F) over pre-industrial levels. Annual per capita emissions in the industrialized countries are typically as much as ten times the average in developing countries. The carbon footprint (or greenhouse gas footprint ) serves as an indicator to compare the amount of greenhouse gases emitted over

1768-487: The exception of those of Berkshire , are coterminous with non-metropolitan counties. For a full list of districts of all types including unitary authorities, metropolitan districts and London boroughs , see Districts of England . This is a list of former two-tier districts in England which have been abolished, by local government reorganisations such as the 2009 structural changes to local government in England . It does not include districts that still exist after becoming

1820-824: The importing country, rather than the exporting, country. A substantial proportion of CO 2 emissions is traded internationally. The net effect of trade was to export emissions from China and other emerging markets to consumers in the US, Japan, and Western Europe. Emission intensity is a ratio between greenhouse gas emissions and another metric, e.g., gross domestic product (GDP) or energy use. The terms "carbon intensity" and " emissions intensity " are also sometimes used. Emission intensities may be calculated using market exchange rates (MER) or purchasing power parity (PPP). Calculations based on MER show large differences in intensities between developed and developing countries, whereas calculations based on PPP show smaller differences. Carbon accounting (or greenhouse gas accounting)

1872-474: The lapse of formerly declining trends in carbon intensity of both developing and developed nations. China was responsible for most of global growth in emissions during this period. Localised plummeting emissions associated with the collapse of the Soviet Union have been followed by slow emissions growth in this region due to more efficient energy use , made necessary by the increasing proportion of it that

1924-721: The levels of those in the Annex I group of the Kyoto Protocol (i.e., the developed countries excluding the US). Africa and South America are both fairly small emitters, accounting for 3-4% of global emissions each. Both have emissions almost equal to international aviation and shipping. There are several ways of measuring greenhouse gas emissions. Some variables that have been reported include: These measures are sometimes used by countries to assert various policy/ethical positions on climate change. The use of different measures leads to

1976-500: The main international treaty on climate change (the UNFCCC ), countries report on emissions produced within their borders, e.g., the emissions produced from burning fossil fuels. Under a production-based accounting of emissions, embedded emissions on imported goods are attributed to the exporting, rather than the importing, country. Under a consumption-based accounting of emissions, embedded emissions on imported goods are attributed to

2028-459: The major source of greenhouse gas emissions in the EU . Greenhouse gas emissions from the transportation sector continue to rise, in contrast to power generation and nearly all other sectors. Since 1990, transportation emissions have increased by 30%. The transportation sector accounts for around 70% of these emissions. The majority of these emissions are caused by passenger vehicles and vans. Road travel

2080-565: The right to appoint a mayor . Borough status is granted by royal charter and, in many cases, continues a style enjoyed by a predecessor authority, which can date back centuries. Some districts such as Oxford or Exeter have city status , granted by letters patent , but this does not give the local council any extra powers other than the right to call itself a city council . By 1899, England had been divided at district level into rural districts , urban districts , municipal boroughs , county boroughs and metropolitan boroughs . This system

2132-490: The same short-term impact. Nitrous oxide (N 2 O) and fluorinated gases (F-gases) play a lesser role in comparison. Emissions of carbon dioxide, methane and nitrous oxide in 2023 were all higher than ever before. Electricity generation , heat and transport are major emitters; overall energy is responsible for around 73% of emissions. Deforestation and other changes in land use also emit carbon dioxide and methane . The largest source of anthropogenic methane emissions

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2184-529: The section to Aylesbury is all that remains, and is now part of the London to Aylesbury Line . The railway stations in the district were Great Missenden , Amersham , Chalfont and Latimer and Chesham , the furthest tube station from London. Chiltern District fell within the Thames Valley Police area, with police stations in Amersham and Chesham. Neighbourhood policing priorities were set on

2236-561: The social (housing association and local authority provided) and private rented sectors, Stevenage's returns recorded in 2011 that its rented sector comprised 33.2% of its housing, whereas 10.0% of Chiltern's residents rented their homes. In May 2008, the district was assessed by Halifax as having the best rural quality of life anywhere in Britain. In May 2006, a report commissioned by British Gas showed that housing in Chiltern produced

2288-629: The summit of the United Nations Environment Programme reached a legally binding accord to phase out hydrofluorocarbons (HFCs) in the Kigali Amendment to the Montreal Protocol . The use of CFC-12 (except some essential uses) has been phased out due to its ozone depleting properties. The phasing-out of less active HCFC-compounds will be completed in 2030. Starting about 1750, industrial activity powered by fossil fuels began to significantly increase

2340-491: The survey were aggregated and presented at the meeting, and votes taken on the coming quarter's priorities. The Magistrates' Court in Amersham was closed with its jurisdiction reassigned but reopened as a Crown Court dealing with either-way and more serious alleged offences. The district had the highest proportion of home ownership of the 18 local authorities in Bedfordshire, Buckinghamshire and Hertfordshire: combining

2392-526: The two-tier structure, but reforms in the 1990s and 2009 reduced their number to 192. A further 55 non-metropolitan districts are now unitary authorities, which combine the functions of county and borough/district councils. In Wales , an almost identical two-tier system of local government existed between 1974 and 1996 (see Districts of Wales ). In 1996, this was abolished and replaced with an entirely unitary system of local government, with one level of local government responsible for all local services. Since

2444-457: The world today is that the countries with the highest emissions over history are not always the biggest emitters today. For example, in 2017, the UK accounted for just 1% of global emissions. In comparison, humans have emitted more greenhouse gases than the Chicxulub meteorite impact event which caused the extinction of the dinosaurs . Transport, together with electricity generation , is

2496-582: The year 1995). A country's emissions may also be reported as a proportion of global emissions for a particular year. Another measurement is of per capita emissions. This divides a country's total annual emissions by its mid-year population. Per capita emissions may be based on historical or annual emissions. One way of attributing greenhouse gas emissions is to measure the embedded emissions (also referred to as "embodied emissions") of goods that are being consumed. Emissions are usually measured according to production, rather than consumption. For example, in

2548-691: Was abolished by the London Government Act 1963 and the Local Government Act 1972 . Non-metropolitan districts were created by this act in 1974 when England outside Greater London was divided into metropolitan counties and non-metropolitan counties. Metropolitan counties were sub-divided into metropolitan districts and the non-metropolitan counties were sub-divided into non-metropolitan districts. The metropolitan districts had more powers than their non-metropolitan counterparts. Initially, there were 296 non-metropolitan districts in

2600-406: Was at about the time of the 1970s energy crisis . Percent changes per year were estimated by piecewise linear regression on the log data and are shown on the plot; the data are from The Integrated Carbon Observation system. The sharp acceleration in CO 2 emissions since 2000 to more than a 3% increase per year (more than 2 ppm per year) from 1.1% per year during the 1990s is attributable to

2652-420: Was formed on 1 April 1974 by the merger of Chesham Urban District and surrounding Amersham Rural District , under the Local Government Act 1972 . In 1988 it was the first Council to take up stock transfer . 4,650 homes were transferred. The district was abolished on 31 March 2020 and its area is now part of the unitary Buckinghamshire Council . The parishes that made up Chiltern District were: See also

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2704-590: Was occurring within a country, so more operational factories would increase carbon emission levels. Emissions may also be measured across shorter time periods. Emissions changes may, for example, be measured against the base year of 1990. 1990 was used in the United Nations Framework Convention on Climate Change (UNFCCC) as the base year for emissions, and is also used in the Kyoto Protocol (some gases are also measured from

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