John Kerry: “I tend to look at it from the point of view of a human being thinking about how we can make things work.”

the U.N. Finance Analysis suggests that it will cost trillions of dollars. Maybe $2.5 to $4.5 trillion a year between now and 2050.

We do not trade any component of any of those other issues for what we are trying to do on the climate front.

I mean, we try to help the world.

We are competing, but everybody has their own approach, which is one of the exciting things here.