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:

All donations matched! Reader support helps sustain our work. Donate today to keep our climate news free.

[ustream id=12579486 live=1 hwaccel=1 version=3 width=470 height=302]

Grist thanks its sponsors. Become one.