The problem is that you can't simply add bicycles and buses in most places. We fucked up big time when we embraced the car and started living the spread out life. Our cities and rural communities worried literally have to be completely redesigned for that. When I lived in Miami (where I'm from), I rode a bike everywhere. Even though it's very spread out, it's flat and relatively easy to ride around in. Even the rain isn't an issue because while it rains almost every day in the rainy season, you mostly know when it's going to happen. My university was 8 miles from home and that wasn't too bad of a ride. And if something was really far I could ride my bike to whatever bus was going a long way. I couldn't see a lot of people living like that, but it was certainly possible.

But now I live in a rural community in New England. I simply can't ride my bike to school (where I work) everyday. And a bus doesn't make sense because we're all coming from different, spread out places and going to different, spread out places.

Changing how we generate electricity is orders of magnitude easier than trying to convince 400 million people to change how and where they live. It's as simple as that.