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Nombre de programmes trouvés : 6032

le (24m29s)

Detection and Attribution of Climate Change to Different Causes

According to the last IPCC report, the most part of the observed increase in globally averaged temperatures since the mid-20th century is very likely due to the observed increase in anthropogenic greenhouse gas concentrations. This statement relies on a long process of demonstration that consisted in evaluating the ability of the successive generations of climate models to reproduce and interpret the climate variability of the last decades. The more and more numerous statistical analyses aiming at detecting and attributing climate change to natural and anthropogenic causes have reinforced the assessment of experts. The recent detection and attribution studies of observed ...
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le (33m37s)

The Intergovernmental Panel on Climate Change and the Challenges of Climate policy, Equity and Ethics

The 2007 Intergovernmental Panel on Climate Change (IPCC) report provides clear guidance for the greenhouse gas emissions reductions needed to limit global warming to specific targets such as 2 °C above pre-industrial values, as adopted formally by the European Union. Despite the strong scientific consensus found by the IPCC concerning the reality and seriousness of global warming, worldwide emissions of the greenhouse gases that cause climate change continue to increase each year. The nations of the world are still far from agreement on how to act to reduce emissions.
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