[On the U.S.-Chinese relationship in the U.N. climate negotiations at COP 24 and the Paris Agreement "Rulebook"] [There's] a lot of push this year from a number of developing countries to basically re-bifurcate these things. It’s a big fight.
[On making progress on climate change] We’re in a stage where no one really knows what to do. And it’s easier to try out things in small groups and figure out what works. The problem is that the climate scientists say we don’t have time for all this slow, cautious experimentation anymore, because the train is speeding. That’s the nature of the problem. It’s the result of having spent a long time talking about the climate problem in formats that really didn’t make progress.
US Climate Action Center, COP 24 U.N. Climate Negotiations
[On the U.S. negotiating team at the COP 24 climate negotiations in Katowice, Poland] They work seriously, effectively and knowledgeably. There is only this technical negotiating team, not a political one.
[John Bolton’s statement that the North Koreans “have not lived up to the commitments” made in Singapore] totally cuts Secretary of State Pompeo and the special representative, Steve Biegun, at the knees. What is the incentive for North Korea to actually talk about the meat-and-potatoes of denuclearization with the special representative and with the secretary of state if the national security adviser has said nothing is happening so we have to go straight to the top?
[On a Trump administration event on coal on the margins of the COP 24 climate negotiations in Katowice, Poland] It’s difficult for me to say how much a difference it will make in the negotiating room. They are doing some unhelpful things around the edges.
[On COP24 U.N. climate negotiations in Poland and the Paris Agreement "rulebook"] Paris was a breakthrough, but Paris has to be ... brought to life in an operational sense by the rules ... that will hopefully get agreed to at this COP.