For the last decade we have not observed any increase in global temperatures. What's more, climate models did not forecast it even though man-made carbon dioxide, the gas thought to be responsible for warming our planet, has continued to rise. So what on earth is going on?
Climate change is likely to increase the number of civil wars raging in Africa, according to Stanford researchers. Historical records show that in warmer-than-average years, the number of conflicts rises.
The combined global land and ocean surface temperature for September 2009 was 0.62°C (1.12°F) above the 20th Century average of 15.0°C (59.0°F). This was the second warmest September on record, behind 2005, and the 33rd consecutive September with a global temperature above the 20th Century average.
Arctic sea ice has declined slightly less dramatically this year than in the past couple of years. But the seasonal minimum, reached this week, is still the third-lowest on record since satellite radar measurements began.
Comment la calotte glaciaire du Groenland a-t-elle encaissé les coups de chaud du passé ? Pour les climatologues, cette question revêt une importance particulière : y répondre pourrait permettre de mieux prévoir l'évolution de l'inlandsis (calotte glaciaire) groenlandais dans le siècle en cours.