Anyone who would tackle our current addiction to fossil fuels is going to have to maneuver around denial.

Stopping emissions growth represents the most minimal of do-something responses.

Since Serengeti-scale savanna scenes are only one or two million years old, our earliest after-the-apes ancestors didn't move into this scene so much as they evolved with it, as the slower climate changes and uplift produced more grass and less forest.

Unless we redesign our civilization in numerous ways, all of the science in the world won't save us.

Carrying on as usual carries enormous risks, condemning today's students to a world of constant insecurity and frequent catastrophes.

The real focus needs to be on political action to stop this runaway train, real soon.

Climate change has a very high procrastination penalty that just grows with each passing year of inaction - rather like what happens if you don't pay off your credit card. But for climate, there is no such thing as a fresh start from bankruptcy.