Michael Brune

Muir had a gift for distilling profound thoughts into short sound bites.

Optimists. Activists. Leaders.

If we commit to it, America's electrical grid will be free of fossil fuels by the year 2030. That's only 16 years away—and it's a fix that will last forever. But first we have to kill off some zombies.

You make a living by what you get; you make a life by what you give

Grassroots organizing: 1 percent inspiration, 99 percent shoe leather