John Kerry: “this was an error for which we are profoundly sorry, and we are determined to learn all the lessons we can from our…”

The era of the Monroe Doctrine is over.

I mean, we try to help the world.

the U.N. Finance Analysis suggests that it will cost trillions of dollars. Maybe $2.5 to $4.5 trillion a year between now and 2050.

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.