Listen, here's reality. It is completely unfair and absolutely necessary that people who have been oppressed and marginalized have to lead everybody. That is MLK, that is Dolores Huerta, that is Fannie Lou Hamer, that is Ella Jo Baker, that is Nelson Mandela. You walk down the line.

You don't get fewer followers saying outrageous stuff on Twitter.

We tend to overlook the fact that a mature clean energy economy in fact will give an opportunity to ordinary people to earn more money as clean energy workers/entrepreneurs - and save more money, through conservation and energy efficiency.

Basically, we all just had to live in the Trump reality television show, and now we're kind of stuck there for at least four years. Maybe eight.

I want to be remembered as one of the great innovators among social justice advocates of the 21st Century.

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.

Government-mandated and -subsidized ethanol from corn will go down in history as the "Iraq War" of environmental solutions: ill-considered, costly, and disastrous.