Here, there's more of a movement, it doesn't mean we're winning any more, but we're at least fighting.

Climate change is the single biggest thing that humans have ever done on this planet. The one thing that needs to be bigger is our movement to stop it.

The technology we need most badly is the technology of community, the knowledge about how to cooperate to get things done.

Very few people on earth ever get to say: 'I am doing, right now, the most important thing I could possibly be doing.' If you'll join this fight that's what you'll get to say

what you do every day is what forms your mind and precious few of us can or would spend most days outdoors.

In 50 years, no one will care about the fiscal cliff or the Euro crisis. They'll just ask, "So the Arctic melted, and then what did you do?"

Global warming is no longer a philosophical threat, no longer a future threat, no longer a threat at all. It's our reality.

Advent: the time to listen for footsteps - you can't hear footsteps when you're running yourself.

We've been given a warning by science, and a wake-up call by nature; it is up to us now to heed them.

The real negotiation is between humans on the one hand and chemistry and physics on the other. And chemistry and physics, unfortunately, don't bargain.

We can either save the planet from catastrophic warming, or protect fossil fuel CEOs. Not both. Do the math(s)

Secrets are powerful, and this was one of the most powerful of all.

Move your body.

Climate change constitutes a serious threat to global security.

Insurance companies, drug companies are going to have to be ponying up, partly because right now they're receiving huge subsidies.

Enemies strike at weak points.

You don't have to save the world, but you can be in the world-that's where the beauty comes from

Of what help is anyone who can only be approached with the right words?

I feel like there's a desire for a sense of permanence that is growing in me.

Anything short of cannibalism is just beating around the bush.

Yeah, I've made some mistakes. Every guy makes mistakes.