Boisson de Chazournes Laurence

"United Nations Framework Convention on climate change"

Global warming, which is the increase in global average temperature in the course of the twentieth century, is mostly due to the increase of atmospheric greenhouse gas (GHG) concentrations caused by human activity ; these anthropogenic emissions have increased by 70 per cent between 1970 and 2004 Intergovernmental Panel on Climate Change (IPCC) 4th Assessment Report).