“Roughly 90% of new electric generation around the world last year came from the sun and the wind. And that in turn is because earlier this decade we crossed some invisible line where it became cheaper to produce power from the sun than from burning coal and gas and oil. Let me repeat, we live on a planet where the cheapest way to make power is to point a sheet of glass at the sun. We have quite suddenly the opportunity to build a clean abundant future if we simply seize it.. It would be an extraordinary sin to waste it and it would be a beautiful, beautiful project for humans to build it out across our hot and tired earth in the next few years.”