This wikipedia article point to some good sources on the topic: http://en.wikipedia.org/wiki/Extinction_risk_from_global_warming http://en.wikipedia.org/wiki/Ex

This wikipedia article point to some good sources on the topic: http://en.wikipedia.org/wiki/Extinction_risk_from_global_warming http://en.wikipedia.org/wiki/Extinction_risk_from_global_war... The tldr is that many scientists do believe that a significant % of species will go extinct at the current rate of global warming. But there is the standard uncertainty, as there always is in complex topics like this. >There is medium confidence that approximately 20-30% of species assessed so far are likely to be at increased risk of extinction if increases in global average warming exceed 1.5-2.5 °C (relative to 1980-1999). As global average temperature increase exceeds about 3.5 °C, model projections suggest significant extinctions (40-70% of species assessed) around the globe.