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.

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.

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.