The Climate Change Impact of Spam
Taking off from David Canton’s post on the Economics of Spam, here’s a link to a survey from McAfee published today that has some findings that surprised me – One e-mail is like driving three feet:
An estimated worldwide total of 62 trillion spam emails were sent in 2008
Globally, annual spam energy use totals 33 billion kilowatt- hours (KWh), or 33 terawatt hours (TWh). That’s equivalent to the electricity used in 2.4 million homes in the United States, with the same GHG emissions as 3.1 million passenger cars using two billion United States gallons of gasoline
Spam filtering . . . [more]


