from now until we see that beautiful clean future. >> as far as nations being encouraged to do better, talk to us about the deal and its reporting structure and what some say really is a lack of -- lack of making sure that people of the nations are held accountable. >> that's actually really not true in this agreement. that was a big fight between the u.s. and china about transparency. what the deal says is when the government comes back, they have to make a promise about what they're going to do to fix this greenhouse gas problem we have, the poison in the air. they have to come back with a better promise the next five years. there's no back sliding. more importantly, they have to open their books to the world's governments and show concretely what they've done in the intervening period. that process was one of the key things that people around the world were fighting for. in fact, something the u.s. led in fiegt for as well.