New Scientist: The 62 trillion spam emails sent in 2008 created carbon emissions equivalent to that of 2 billion gallons of petrol burnt in a car engine, according to a report (pdf) by computer security firm McAfee. The report looked at the energy expended to create, store, view and filter spam on personal computers and servers across 11 countries, including Australia, China, France, the US and the UK. It found that the level of spam-related emissions generated in these countries is proportionate to …