The consequences of climate change—rising waters, extreme weather, record temperatures—are transforming our lives, as global warming accelerates more rapidly than scientists predicted even a few years ago. At the same time, the clean energy revolution is forging ahead faster than nearly anyone anticipated. As Tom Steyer sees it, these two trends together create a moment like the one America faced during World War II: on the one hand, an existential threat that demands our collective action; on the other, an opportunity to lead the world, protect the planet, and set the stage for a new generation of shared economic prosperity.

In 2012, Steyer walked away from the highly successful investment fund he founded to devote himself full time to climate issues, and he’s been on the front lines ever since. In this accessible book, aimed at everyone from college students to Wall Street investors, Steyer presents his blueprint for winning the climate fight—sharing his own story of becoming a “climate person,” debunking the arguments made by fossil fuel companies, and showcasing the inspiring, innovative work of other climate leaders in the clean-energy transition. Capitalism, Steyer argues, can be the key to scaling climate progress, and all of us can play a part in stabilizing our planet. As green technology is fast becoming cleaner and cheaper, reshaping our planet’s future—and our own—has never been more crucial or within our reach.