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The Intergovernmental Panel on Climate Change (IPCC) had been formed by the United Nations in 1988, [29] [30] and it presents reports summarizing the strength and extent of consensus on climate change and its numerous aspects to the member states of the United Nations, with the major reports released at 5-to-7-year intervals starting from 1990.
Through its Committee on the Science of Climate Change in 2001, the United States National Research Council published Climate Change Science: An Analysis of Some Key Questions. This report explicitly endorses the IPCC view of attribution of recent climate change as representing the view of the scientific community: [5]
The key conclusions of Working Group I [11] were: . An increasing body of observations gives a collective picture of a warming world and other changes in the climate system (The global average surface temperature has increased over the 20th century by about 0.6 °C; Temperatures have risen during the past four decades in the lowest 8 kilometres of the atmosphere; Snow cover and ice extent have ...
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The Chicago Climate Charter builds on a pledge that former New York City mayor Michael Bloomberg made last year — cities and businesses will lead on climate change, he said, with or without the ...
The final synthesis report was finished in March 2023. It includes a summary for policymakers and was the basis for the 2023 United Nations Climate Change Conference (COP28) in Dubai. [1] The first of the three working groups published its report on 9 August 2021, Climate Change 2021: The Physical Science Basis.
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The United Nations Framework Convention on Climate Change (UNFCCC or FCCC) is an international environmental treaty negotiated at the United Nations Conference on Environment and Development (UNCED), informally known as the Earth Summit, held in Rio de Janeiro from 3 to 14 June 1992.