Even if we stop the growth, we'd still be adding a constant amount of fossil carbon to the atmosphere each year.

You can always spot the pioneers by the arrows in their backs.

If we don't start thinking big about the CO2 problem, we may miss our opportunity to stop a climate runaway that will trash the habitable parts of the earth.

Our CO2 mixes with everyone else's within a year, then hangs around for centuries like a shroud.

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

Trusting your energy policy to the fossil fuel lobby is like trusting your health care system to the tobacco lobby.

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.