John Kerry: “There will be a review of some kind, and that is what we ought to sit down and work out.”

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.

But, we could with battery. We could with-- there's ways to make that work.

The message coming out of this COP is, we are moving away from fossil fuels. We are not turning back. That is the future.

We will communicate to the office that you're asking and that it's important to try to get to it as soon as possible.