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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 ...
The "Special Report on Global Warming of 1.5 °C" (SR15) is cited by Greta Thunberg in her speeches "Wherever I Go I Seem to Be Surrounded by Fairy Tales" (United States Congress, Washington DC, 18 September 2019) and "We Are the Change and Change Is Coming" (Week For Future, Climate Strike, Montreal, 27 September 2019), both published in the ...
The overall risks of climate change impacts can be reduced by limiting the rate and magnitude of climate change" [14] Working Group III: Without new policies to mitigate climate change, projections suggest an increase in global mean temperature in 2100 of 3.7 to 4.8 °C, relative to pre-industrial levels (median values; the range is 2.5 to 7.8 ...
Climate change that takes place over millennia differs from the man-made climate crisis which has been largely caused by the ... In the study, scientists applied climate models simulating ...
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Publicity over the concerns of scientists about the implications of global warming led to increasing public and political interest, and the Reagan administration, concerned in part about the political impact of scientific findings, successfully lobbied for the 1988 formation of the Intergovernmental Panel on Climate Change to produce reports subject to detailed approval by government delegates ...
The study by the World Weather Attribution, a group of scientists who use established climate models to quickly determine whether human-caused climate change played a part in extreme weather ...
This is a list of statements by major scientific organizations about climate change, that have issued formal statements of opinion, classifies those organizations according to whether they concur with the IPCC view (i.e. the scientific consensus on climate change), are non-committal, or dissent from it.