How Much Energy Does a Tweet Consume?

How much energy does it take to shoot off a single tweet? Not that much, according to Raffi Krikorian. Earth2Tech tells us that the Twitter developer recently gave a talk at Chirp entitled "Energy/Tweet," where he claimed that a tweet consumes approximately 100 joules of energy (0.02 grams of CO2 emissions). That means Twitter's carbon footprint is relatively low--the 50 million tweets sent out daily emit one metric ton of CO2. In 2006, a single American family emitted an average of 24...