John Kerry: “Cautious optimism may be appropriate given recent developments.”

There is no current proposal or plan that has been agreed to which would require us to do that.

It's a matter of mathematics and physics, not politics, not ideology. It is a response to the science.

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

no country can solve the climate crisis alone. This requires multilateralism automatically.