A sobering new assessment by the “Climate Action Tracker” of the emission commitments and pledges put forward by industrialized and developing countries for the Copenhagen climate negotiations shows that the world is headed for a global warming of well over 3°C by 2100. Carbon dioxide concentrations are projected to be over 650 ppm, with total GHG concentrations close to 800 ppm CO2 equivalent. From these numbers, there is at least a one in four chance of exceeding a warming of 4°C.
This “Climate Action Tracker” is an independent science-based assessment, which tracks the emission commitments and actions of countries. The website provides an up-to-date assessment of individual national pledges to reduce their greenhouse gas emissions. (The global pathway does not yet include updates on recent proposals by India and South Africa. These will however only have a minor effect on the global emissions pathway.) For further information go to Methodology