There is the natural tendency that all of us are vulnerable to, to deny unpleasant realities and to look for any excuse to push them away and resolve to think about them another day long in the future.

When energy prices go up, the difficulty of projecting demand also goes up - uncertainty goes up.

I don't really consider this a political issue, I consider it to be a moral issue.

Clouds of a different sort signal an environmental holocaust without precedent. Once again, world leaders waffle, hoping the danger will dissipate. Yet today the evidence is as clear as the sounds of glass shattering in Berlin.

I was born a poor black child.

There are good people, who are in politics - in both parties - who hold this at arm's length, because if they acknowledge it and recognize it, then the moral imperative to make big changes is inescapable.

The conversation on global warming has been stalled because a shrinking group of denialists fly into a rage when it's mentioned.