"Some analysts estimate that emailing a 4.7-megabyte attachment — the equivalent of four large digital photos — can use as much energy as it takes to boil about 17 kettles of water. The problem is magnified when large emails are forwarded to many people and left in inboxes undeleted. As long as emails remain in your inbox, the data they create is physically stored somewhere"
Don’t forward those photos - The Boston Globe (via interestingsnippets)
I never thought about the energy costs of email before (though 17 kettles of water is not necessarily an analog comparison that means too much for me, so it may not have the desired impact in terms of showing, well, impact). Still, something to think about, and I guess it makes me glad for photo-sharing services, which can more readily—and hopefully more efficiently—store and transfer these files.