Climate Change

A meeting of minds on the future of our planet

Core of ice, containing pieces of base rock, extracted from the site of Vostock (Antarctic) at a depth of 3 600 metres. Research by the CNRS laboratory of glaciology and environmental geophysics in St-Martind’Hères. Core of ice, containing pieces of base rock, extracted from the site of Vostock (Antarctic) at a depth of 3 600 metres. Research by the CNRS laboratory of glaciology and environmental geophysics in St-Martind’Hères.
© CNRS Photothèque/Laurence Medard

 

The fourth report of the Intergovernmental Panel on Climate Change (IPCC) was issued amidst a blaze of publicity on 10 February. It summarises two decades of important multidisciplinary research and formally concludes that the symptoms of global warming due to human activity are all too real, and will inevitably progress faster than was previously thought.

We must act. There is a before and an after – 2007. In March, the European Union raised the alarm at the European Council, held in the spring under the German presidency. It set the objective to drastically reduce greenhouse gas emissions by 20% between now and 2020.

This report revisits this scientific confirmation of climate change, and brings together the views of Paul Crutzen, specialist in atmospheric chemistry; Nicholas Stern, economist and author of a forceful report on the cost of global warming; and Dominique Bourg, philosopher of sustainable development.




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