The laws of Congress and the laws of physics have grown increasingly divergent, and the laws of physics are not likely to yield.

I try not to be either optimistic or pessimistic. I try not to think about outcomes on that scale. My job, it seems to me, is to wake up every morning and figure out how to cause as much trouble for the fossil fuel industry as I can.

In the last two years 24 countries have set new all-time temperature records. We've seen flooding on an epic scale in every continent .

We don't know exactly where all the tipping points are in the physical world for inescapable damage, but we're clearly reaching close to some of them.

Colonialism of one kind or another, imperialism of one kind or another, and slavery, and on and on and on.

If one wanted to stigmaitise, that's how one would do it - lots and lots of people saying "we're severing our ties".

To me the analogy [to climate change] is... doctors worry a lot about cholesterol. And if you go to the doctor, and the doctor says "oh, your life would be happier if you ate a different diet and exercised" people pay no attention.