Global warming will lead to a climatic and social catastrophe the likes of which humanity has never seen. The bourgeoisie no longer disputes the warnings of the scientists, but it cannot resolve itself to do what must be done to avoid this real possibility. The capitalists are the ones who are destroying the environment. They presently have the political power to dominate the rest of humanity, but they don't have the political will to stop destroying the Earth. The obvious conclusion to draw from Kyoto is that the Earth cannot be saved under capitalism.
Proletarian revolution is the planet's last hope.