Around 2007 there was a ton of hype about the greatest new path to Green Utopia: Solar Roads. Imagine if the roads were solar panels, producing more power than they consumed? You could capture all that wasted space for low-energy solar power, and it would be great. The detractors warned that it'd be a disaster: too expensive, it would wear out, dirt would decrease efficiency, slick surface and roadways aren't a good mix, and a dozen other reasons it was a bad idea (theft, vandalism, etc). It was tried privately in small scale (like in Idaho) and was a disaster. But police states in Europe (France) and China, built a few larger scale one anyways, and they were exactly as the Greens denied and those with a clue warned, a bad fucking idea from the top to bottom. The point isn't that it was a good idea that didn't really work -- it was a bad idea that you couldn't reason with the left/Greens on, and they wasted many millions (or billions) trying to prove common sense wrong. Something to keep in mind when thinking about greens.