…So, you ride a bike or walk? Sure, you use far less energy. But the bike is made of coal (smelted aluminum and iron) and oil (tires, seat, plastic), then it is painted with oil. It’s a Gary Fisher, you say? OK, clear-coated with oil, or anodized with coal. Your Nikes or Chacos are pure oil, plus some coal (Chinese electricity) toted over on a smoky, Bunker No. 6-burning container ship. Your PV system (and mine): oil (plastic) and coal (aluminum), in combination with coal (electricity to make the smelt the silicon, refine the cadmium and tellurium), plus some more coal (electricity) to run the plant. And those coal plants which make the electricity to make these “clean energy” solar cells (of yours and mine) are over in China, where they can’t be protested. They’re out of sight and out of mind, unless you’re Chinese and breathing the effluent of a plant which no doubt has far fewer scrubbers and precipitators than those required in the US….