‘Greenseng: A Green Search Engine That Actually Conserves Energy’

TechCrunch has an article on Greenseng, the green search engine.  Apparently, Greenseng purchases carbon credits to offset the power consumed by it’s servers and users computers.  From TechCrunch:

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.

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‘Green cement may set CO2 fate in concrete’

SFGate.com has an article on a new type of cement which could significantly reduce carbon emissions:

Back when Stanford Professor Brent Constantz was 27 he created a high-tech cement that revolutionized bone fracture repair in hospitals worldwide. People who might have died from the complications of breaking their hips lived. Fractured wrists became good as new.

Now, 22 years later, he wants to repair the world.

Constantz says he has invented a green cement that could eliminate the huge amounts of carbon dioxide spewed into the atmosphere by the manufacturers of the everyday cement used in concrete for buildings, roadways and bridges.

His vision of eliminating a large source of the world’s greenhouse CO{-2} has gained traction with both investors and environmentalists.

Already, venture capitalist Vinod Khosla is backing Constantz’s company, the Calera Corp., which has a pilot factory in Moss Landing (Monterey County) churning out cement in small batches.

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