John Kerry: “Sudan must not go down this road again.”

We do not trade any component of any of those other issues for what we are trying to do on the climate front.

Nothing is agreed to until everything is agreed to.

What we are trying to achieve now is really to establish some stability if we can, in the relationship, without conceding anything.

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.