Global warming pollution, indeed all pollution, is now described by economists as an “externality.” This absurd label means, in essence: we don’t to keep track of this stuff so let’s pretend it doesn’t exist.

Now we have things that are obviously false, leading us to war, leading us to deny people health care, leading us to ignore the climate crisis. We have to restore the integrity of the democratic conversation.

The good news is, we have everything we need now to respond to the challenge of global warming. We have all the technologies we need, more are being developed.... But we should not wait, we cannot wait, we must not wait.

It's not at all new for wealthy and powerful interests to try to hide the ball and ignore independent analyses of relevant facts.

I'm old enough to know that a red carpet's just a rug, and I've been able to enjoy the pageantry without letting it go to my head.

When politics is too slow, change has to come from culture.

There's no such thing as clean coal. It's non-existent. Theoretically, it might be possible, many years from now, to come up with a way to clean it as it's burnt. But there's not a single demonstration project in the United States. [...] Clean coal doesn't exist.