350.org and Bill McKibben have been barnstorming the U.S. since the election with their Do the Math tour. I caught the show in Berkeley, my home town. It’s a stirring, heartfelt, unpasteurized, unhomogenized effort to spark a new grassroots movement aimed at breaking the climate-action deadlock by putting pressure on the fossil-fuel industry.

I highly recommend catching the presentation in person if you can. But if you can’t, Sunday’s event in Washington, D.C., is being live-streamed. Things begin at 1 p.m. Eastern time, and you can watch along right here:

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