You could power America with renewables from a technical and economic standpoint. The biggest obstacles are social and political - what you need is the will to do it.

There is no need for nuclear. The world can be powered by wind, water and sun alone.

A large-scale wind, water and solar energy system can reliably supply the world’s needs, significantly benefiting climate, air quality, water quality, ecology and energy security ... [T]he obstacles are primarily political, not technical.

Every dollar spent on nuclear is one less dollar spent on clean renewable energy and one more dollar spent on making the world a comparatively dirtier and a more dangerous place, because nuclear power and nuclear weapons go hand in hand.

You can power the entire U.S. vehicle fleet with 73,000 to 145,000 five-megawatt wind turbines. That would take between one and three square kilometers of footprint on the ground.

You could power America with renewables from a technical and economic standpoint. The biggest obstacles are social and political - what you need is the will to do it.