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

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

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

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

Carbon-free energy is simply something we have to do. The time for talk is past. If we turn around net carbon emissions by 2020 rather than 2040, we get another 2° of fever rather than 3° - and that's a big difference.

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

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.