I think it is important for people to understand that there are real serious economic costs and real serious economic damages associated with inaction on climate change.

It really is a very radical call ... to reject materialism as our central value and to think about the sanctity of life and what that really means if we take it seriously.

Scientists should continue doing what they've always done, which is to understand the Earth as well as they can.

I think Pope Francis is our Pope Francis. I mean, the point of him is that he's a global leader, and he's trying, I think he's embracing that role.

The same mentality that leads to environmental despoliation, environmental destruction, also leads to damage to people.

Scientific monitoring is going to be terrifically important, because whatever steps we take ... we will have to monitor those steps in order to know if they're actually working.

It's extremely hard to know what the economic consequences of any decision will be. And I'm not a, a, a financial analyst, so I, I generally don't try to make some kind of prediction about that.