John Kerry: “This criminal enterprise--and that is what it is, a criminal enterprise--has inhumanely commercialized large swaths of…”

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 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.

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

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