When NPR interviewed Rep. Alexandria Ocasio-Cortez in February about her Green New Deal, she said that her goal was bigger than just passing some new laws. “What I hope we’re able to do is rediscover the power of public imagination,” she said.

Well, we’re unleashing our imagination and exploring a dream, a possible future in which we’re bringing global warming to a halt. It’s a world in which greenhouse emissions have ended.

So — what does this world look like?

Mass Electrification (Batteries Hold The Power)

(Editor’s note: Each story has two sections, the first reflecting the present and the second imagining the world of 2050.)

2019: I went looking for people who’ve mapped out this world without greenhouse emissions. I found them in Silicon Valley.

Sila Kiliccote is an engineer. The back deck of her house, high up in the hills, overlooks Cupertino. Apple’s circular headquarters is hidden in the morning mist. It’s a long way from Istanbul, in Turkey, where she grew up; a great place to conjure up future worlds.