If the facts don’t fit the theory, change the facts.

You cannot see the changes that you're dreaming about, because they're internal.

I can be almost terminally grief-stricken because things are so dire, but at the same time, there's a real lightheartedness about just the recoverability of life, of how things change, how they're not the same, ever again.

We always overestimate the change that will occur in the next two years and underestimate the change that will occur in the next ten. Don't let yourself be lulled into inaction.

People are going to buy cheap fertilizer so they can grow enough crops to feed themselves, which will be increasingly difficult with climate change.

We've got to put a lot of money into changing behavior.

Ruin is a gift. Ruin is the road to transformation.

It's the poorer people in tropical zones who will get really hit by climate change - as well as some ecosystems, which nobody wants to see disappear.

It’s pain that changes our lives.