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Every time you send out 140 characters over the social application Twitter, how much energy does that consume? According to some back of the napkin calculations from Raffi Krikorian, a developer for Twitter’s Platform Team, each tweet sent consumes about 90 joules. That means each tweet emits about 0.02 grams of C02 into the atmosphere.
That’s actually not bad at all — in comparison one Google search query has been found to consume about 1 kilojoule per query, which emits 0.2 grams of CO2. And according to a recent study each spam email message emits 0.3 grams of carbon.
However the research does remind us that IT takes energy to run and the energy consumption — and carbon emissions — footprint of IT is just growing bigger every day. For example, Greenpeace recently put out a report that said that the energy consumption and carbon emissions of cloud computing are already significantly higher than previously thought. Folks in the developer community like Krikorian are acknowledging the problem, and as he says in the video clip: “We can do better.”
Here’s his slides from the talk:
To learn more about how the Internet can deliver dematerialization (replacing atoms with bits) come to our Green:Net conference on April 29 in San Francisco, and hear from Jonathan Koomey, Project Scientist and Consulting Professor, Lawrence Berkeley National Laboratory and Stanford University, Molly Webb, Head of Strategic Engagement, The Climate Group, Casey Harrell, IT Analyst, Greenpeace International, Saul Griffith Co-Founder, Squid Labs and Alexis Madrigal, Staff Writer, WIRED.com.
For more research on how the Internet can deliver dematerialization see Study: ‘Cyber Monday’ 50 Times Greener Than ‘Black Friday’, on GigaOM Pro (subscription required).
Images courtesy of Twitter and krazydad/jbum’s photostream.