Climate change is the unifying crisis of our time. But the scale of the problem can be paralyzing, especially when corporations are actively staving off changes that could save the planet but which might threaten their bottom lines. To quote Greta Thunberg, despite very clear science and very real devastation, the adults at the table are still saying “blah blah blah.” Something has to change—but what, and how?

In What’s Left, Malcolm Harris cuts through the noise and gets real about our remaining options for saving the world. Just as humans have caused climate change, we hold the power to avert a climate apocalypse, but that will only happen through collective political action. Harris outlines the three strategies—progressive, socialist, and revolutionary—that have any chance of succeeding, while also revealing that none of them can succeed on their own. What’s Left shows how we must combine them into a single pathway: a meta-strategy, one that will ensure we can move forward together rather than squabbling over potential solutions while the world burns.

Vital and transformative, What’s Left confirms Malcolm Harris as next-generation David Graeber or Mike Davis—a historian-activist who shows us where we stand and how we got here, while also blazing a path toward a brighter future.