John Kerry: “It's neither practical nor desirable to immediately cease fossil fuel production.”

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.

It's a matter of mathematics and physics, not politics, not ideology. It is a response to the science.

Without a border protected you don’t have a nation.