Simon Willison’s Weblog

3 items tagged “co2”


For some reason, in their story on the study, the Times had an ax to grind with Google. Our work has nothing to do with Google. Our focus was exclusively on the Web overall, and we found that it takes on average about 20 milligrams of CO2 per second to visit a Web site.

Alex Wissner-Gross # 14th January 2009, 9:15 am

Leo Hickman on the carbon cost of Googling. Alex Wissner-Gross (who published the 7g/search figures) appears to be including Google’s extra capacity, so total CO2 output divided by number of searches. Google’s 0.2g/search estimate includes just the energy used by the servers processing your query. # 12th January 2009, 3:31 pm

Powering a Google search. I thought the recent estimate of each Google search producing 7g of CO2 was a little high—Google have responded with a claim that the amount is 0.2g instead. # 12th January 2009, 11:15 am