Is doom an inevitability?

I don't wish to be skeptical, however, I am aware of the fact that the future of our planet is going to be decided by politicians; people that only think 4 or 5 years into the future at best.

Yes, Mexico is hosting a gathering of major polluters. No doubt we can expect a large increase in hot air; particularly from the representative from the north of that meeting point, based on their attitude toward the Kyoto accord.

However, there have been so many stories of late, even most politicians couldn't have failed to notice.