John Kerry: “I wish to make it as clear as possible, from all of the record to date, that the treaty's preamble, first of all…”

What we are trying to achieve now is really to establish some stability if we can, in the relationship, without conceding anything.

People think this is now, you cannot reverse it, it is irreversible.

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.

We're spending billions--literally, actually, trillions.