Raporun geniş özeti (1 . Bölüm): 10th Session Of Working Group 1 OfThe lntergovernmental Panel On Climate Change: 29 January - 1 February 2007 TheTenth Session ofthe lntergovernmental Panel on Climate Change (IPCC) Working Group 1 (WGI) took place at UNESCO Headquarters, Paris, from 29 January to I February 2007. The meeting was attended by 31 1 participants, including scientists and representatives from governments, UN agencies, and non-governmental organizations. The meeting resulted in the acceptance of the WGI contribution to the IPCC Fourth Assessment Report (AR4), titled "Climate Change 2007: the Physical Science Basis," including approval of the Summary for Policy Makers (SPM) and acceptance of the underlying report and Technical Summary. More than 350 members of the media were present for the release of the SPM on Friday, 2 February 2007. The SPM fınds that there is more than a 90 percent probability that human action has contributed towards recent climate change, and contains a series of , projections forfuture impacts, including on temperatures, sea level rise, and extreme weather events. A Brief History Of The IPCC And Ar4 The IPCC was established in 1988 by theWorld Meteorological Organization (WMO) and the United Nations Environment Programme (UNEP). The purpose ofthe IPCC is to assess the scientifıc, technical and socioeconomic information relevant to understanding the risks associated with human-induced climate change. The IPCC does not undertake new research, nor does it monitor climate-related data, but bases its assessments on published and peer-reviewed scientifıc and technical literature. The IPCC Secretariat is located in Geneva, Switzerland, and is staffed bythe WMO and UNEP. The 1 PCC currently has three working groups: Working Group 1 (WGI) addresses the scientifıc aspects of the climate system and climate change; Working Group il (WGII) addresses the vulnerability of socioeconomic and natura! systems to climate change, negative and positive consequences of climate change, and adaptation options; and Working Group 111 (WGIII) addresses options for limiting greenhouse gas emissions and otherwise mitigating climate change. The IPCC also has a Task Force on National Greenhouse Gas lnventories. The Task Force oversees the IPCC National Greenhouse Gas lnventories Programme, which aims to develop and refıne an internationally-agreed methodology and software for the calculation and reporting of national greenhouse gas emissions and removals, and to encourage the use of this methodology by countries participating in the IPCC and by signatories to the United Nations Framework Convention on Climate Change (UNFCCC). The IPCC Bureau, composed of 30 members elected by the Panel, assists the IPCC Chair in planning, coordinatingand monitoring progress in the work of the IPCC. Since its inception, the IPCC has prepared a series of comprehensive assessments, special reports and technical papers, which provide scientifıc information on climate change to the international community, including policy makers and the public. This information has played an important role in negotiations under the UNFCCC and in framing national and regional policies. The IPCC completed its initial comprehensive assessments of climate change in the First Assessment Report in 1 990 and the Second Assessment Report in 1995. The IPCC's Third Assessment Report (TAR), completed in 2001 , addresses policy-relevant scientifıc, technical, and socioeconomic dimensions of climate change, and concentrates on fındings since 1 995 at both regional and global levels. The TAR, which was subject to extensive review from experts and governments, is composed ofa comprehensive assessment from the three IPCC Working Groups, a Summary for Policy Makers (SPM) and Technical Summary of each Working Group report, and a Synthesis Report. The TAR Synthesis Report is written in a non-technical style aimed at policy makers, and discusses nine ♦ ENERJi DÜNYASI ŞUBAT 2007 1 "Enerjide Sürdüıülebilir1ikveKüreselleşme:Verimlilik, Emisyonlar, Yeni Piyasa Oluşooılan" ee-=========='----------l--27
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