Fast Company: It's becoming more and more obvious, if it wasn't already, that we don't have that much time to cut greenhouse gas emissions before climate change is out of control: One recent U.N. report suggests that energy systems will have to completely transform by 2050. So what might that actually look like?
One new project involves mapping out the details state by state, starting with a vision of a smog-free California in which every car and truck would run on electricity or fuel cells, and every watt...