I was lucky to grow up at a time when it was not difficult for the child of a tenant farmer to make his way to the state university.

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

In view of the immense power of natural weather and climate fluctuations and the great buffering capacity of the Earth, especially the ocean, it is easy to be skeptical about whether small anthropogenic changes of atmospheric composition can have important practical impacts.

...99 percent confident that the world really was getting warmer and that there was a high degree of probability that it was due to human-made greenhouse gases.

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

What we are doing to the future of our children, and the other species on the planet, is a clear moral issue.

Adding CO2 to the air is like throwing another blanket on the bed.