Climate change can make us feel hopeless. From superstorms and megafires to melting ice caps and rising seas, the ravages of global warming are only getting worse. If human activity is driving us to the brink, the good news is that humans are also developing and deploying new technologies that can help the world kick the carbon habit. We already have affordable, market-ready solutions like solar, wind, and hydropower — the massive deployment of which could make America carbon neutral by 2050. And there are new technologies on the near horizon that could accelerate our trajectory toward a green future. What follows are seven advances — from electric planes to “green” cement to tidal-power generation — that could make modern living more sustainable for our only planet.