John Kerry: “I think dialogue and coercive diplomacy with Iran can slow down their nuclear program, their nuclear progress.”

Coal is the dirtiest fuel in the world, and emissions that are not captured from coal are the worst cause of the warming of the ocean.

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.

I mean, we try to help the world.

It's very obvious that there are huge threats here.