Now, here's a good question: should serious people focus on global political instability - terrorism, failing states, nuclear weapons - or should we focus on global climate instability - droughts, floods, extreme weather? Here's the correct answer: yes, both, because climate disruption will make every other national security problem worse.

I am not, in fact, a superhero. Just a humble, mild-mannered civil rights attorney.

All the big ideas for getting us onto a lower carbon trajectory involve a lot of people doing a lot of work, and that's been missing from the conversation. This is a great time to go to the next step and ask, well, who's going to do the work? Who's going to invest in the new technologies? What are ways to get communities wealth, improved health, and expanded job opportunities out of this improved transition?

What I saw during the Hillary Clinton campaign [2016] with data dummies who were more concerned with polls than people, they were more concerned with donors than voters. And it wasn't a lot of heart felt on that campaign and I think it left us vulnerable.

You can't lead anybody you don't love. You can't do it. It's not possible.

In the U.S., African- Americans, no matter what we do - when we sit in, when we freedom ride, when we kneel in, whatever it is, the initial response from the public tends to be overwhelmingly negative, because basically we're kind of raining on folks' parades. As time goes on, the Muhammad Ali's and all the people that raised those issues, they then become heroes later when people reflect on the courage they showed and the issues that they raised. And Donald Trump is in danger of being a more and more reviled figure as the years go on.

If people leave your coalition, whose fault is it? It's your fault. You have to build a coalition that's attractive to people.