The fact is fossil fuel carbon will stay in the surface climate system for millennia.

Coal is responsible for as much atmospheric carbon dioxide as other fossil fuels combined and it still has far greater reserves. We must stop using it.

We have known since the 1800s that carbon dioxide traps heat in the atmosphere. The right amount keeps the climate conducive to human life.

It's as certain that as long as fossil fuels are the cheapest energy, we will just keep burning them.

I have been described as the grandfather of climate change. In fact, I am just a grandfather and I do not want my grandchildren to say that grandpa understood what was happening but didn't make it clear.

If America can go to the moon, then in the decades to come we should not ever have to have young Americans sent to any part of the world to defend and die for America's gluttony on fossil fuel.