John Kerry: “We all have very significant concerns about what went wrong on board Deepwater Horizon.”

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

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

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 reason that happened, my friend, is because Donald Trump pulled out of that agreement.