We’ve seen a few sites attempt to help turn the web green, but most of them have been little more than gimmicks. Blackle purports to conserve energy by offering a “black” version of Google, which it says uses less energy than the engine’s standard white. But Google has gone on to say that black may actually increase the amount of energy consumed by visitors (of course, this didn’t stop Google Israel from turning its site black in honor of Earth Hour).
Today, Y Combinator startup CO2Stats has launched a search engine that aspires to be truly green. Greenseng (sounds like Ginseng) is a standard search engine, pulling results from Google’s Custom Search to produce results. But instead of relying on a dubious method of energy conservation, CO2Stats measures the amount of energy used by its servers and the computers of its users and purchases renewable energy certificates (similar to carbon credits) to offset the environmental toll.