John Kerry: “This is an idea whose time has not just come but is long overdue.”

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.

But, we could with battery. We could with-- there's ways to make that work.

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

Back-up baseload, no. But, some primary they could be part of it.