All those spam e-mails in your inbox are more than just a nuisance, they're also clogging up the skies with carbon dioxide. The carbon emissions created by the 62 trillion spam emails sent last year were equivalent to those emitted by burning 2 billion gallons of gasoline to run a car, according to a report by the computer security firm McAfree. Most of the energy used (by you and the electrical grid) comes from the effort required to delete also those unwanted emails.
In our new Etc. format, LiveScience provides links to articles of interest around the web. It is in Beta.