John Kerry: “Your leadership has helped shape the global debate on these issues, and we will need your wise counsel going forward.”

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.

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.

Obviously, we're already seeing ways in which it's going to affect people.

I think we have to look at this beyond the China.