John Kerry: “Iran is an existential threat to them.”

The message is, let's find a way to be able to make sure when we fly, we're not leaving emissions that we cannot capture.

The Administration is determined to try to stabilize what has been, particularly recently, a very unstable situation.

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

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