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Climate Change Act 2008 : ウィキペディア英語版
Climate Change Act 2008


The Climate Change Act 2008 (c 27) is an Act of the Parliament of the United Kingdom. The Act makes it the duty of the Secretary of State to ensure that the net UK carbon account for all six Kyoto greenhouse gases for the year 2050 is at least 80% lower than the 1990 baseline, toward avoiding dangerous climate change. The Act aims to enable the United Kingdom to become a low-carbon economy and gives ministers powers to introduce the measures necessary to achieve a range of greenhouse gas reduction targets. An independent Committee on Climate Change has been created under the Act to provide advice to UK Government on these targets and related policies. In the act Secretary of State refers to the Secretary of State for Energy and Climate Change.
==Carbon emissions target==
On 16 October 2008 Ed Miliband, Secretary of State for Energy and Climate Change, announced that the Act would mandate an 80% cut overall in six greenhouse gases by 2050.
When first published the Government proposed that the Act would set a target of a 60% cut, excluding international aviation and shipping, a figure that had been a Government ambition for some years. The original 60% figure was adopted based on the recommendation of the Royal Commission on Environmental Pollution, made in their June 2000 report ''Energy - The Changing Environment''. If adopted by other countries too, a 60% cut by 2050 was thought likely to limit atmospheric carbon dioxide concentrations to no more than 550 parts per million which, it was generally thought at the time, would probably prevent global temperatures from rising by more than 2°C (3.6°F) and so avoid the most serious consequences of global warming. The Royal Commission went on to say that there should be an 80% cut by 2100, and that the 550 ppm upper limit should be 'kept under review'. They restated the importance of this in January 2006.
The Royal Commission's figures were based on a June 1996 decision of the EU Council of Ministers to limit emissions to 550 ppm, contained in their ''Community Strategy on Climate Change''. This, in turn, was based on the 1995 IPCC Second Assessment Report, which first mentioned the 550 ppm - 2°C connection.
A scientific assessment at the 2005 international ''Avoiding Dangerous Climate Change'' conference, held in Exeter under the UK presidency of the G8, concluded that at the level of 550 ppm it was likely that 2°C would be exceeded, based on the projections of more recent climate models. Stabilising greenhouse gas concentrations at 450 ppm would only result in a 50% likelihood of limiting global warming to 2°C, and that it would be necessary to achieve stabilisation below 400 ppm to give a relatively high certainty of not exceeding 2°C.
Based on the current rate of increase - averaging about 2 ppm per year - greenhouse gas concentrations are likely to reach 400 ppm by 2016, 450 ppm by 2041, and 550 ppm by around 2091. It is because of this that environmental organisations and some political parties criticised the 60% target as being insufficiently ambitious, and why they demanded greater cuts (80%-100%), as mentioned below. The exclusion of emissions from aviation and shipping, combined with forecasts for growth in these areas, also means that the net effect of the bill would actually have only been a 35-50% total cut on 1990 levels by 2050.
After pressure from the public, MPs and a recommendation from the Climate Change Committee, the 80% target was finally adopted.〔(Climate Change Act ), Committee on Climate Change〕〔(A sip of the bubbly (but hold the cigar for a couple of weeks) ), 30 October 2008, WWF-UK

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