“Nuclear power. Carbon sequestration at coal plants. Ethanol-from-corn. Other kinds of biofuels. Carbon cap-and-trading. Hybrid cars. Conventional electric cars. Air cars. Gas-turbine micropower. Efficient powerplants. Hydrogen economy. Hydro-power. Geothermal energy. Solar. Wind. Tides. Waves. Ocean thermal gradients.{{pbr}}Which one(s) of these will solve our climate crisis and give us a large and lasting contribution to energy sustainability? The sobering answer to any truthful inquiry, I am sorry to say, is none of the above.”