Green Google?

Sustainability and CO2 emissions are often related to paper but almost never to Internet search. A Harvard graduate student - Wissner-Gross - recently opened the discussion about how green the web is. He claimed that every web search creates between 5-10 grams of CO2 from the power required to keep the servers going. Google reacted immediately by saying that its emissions are only .02 grams. Gartner, industry analysts, calculated that the global IT industry contributes 2 to 3 % of global carbon emissions, which is as much as the world's airlines. Another calculation indicated that maintaining an avatar in Second Life requires as much electricity as used by an average Brazilian! With growing online use and time spend with the computer this figure will further increase.