The carbon footprint of email spam report

Source: McAfee/ ICF
"This report commissioned by McAfee and carried out by climate change consultants ICF was able to quantify the carbon footprint of a single piece of SPAM. The simple act of deleting SPAM and searching for legitimate e-mails falsely labeled as junk creates the same annual energy consumption of 2.4 million American homes. The average greenhouse gas emission associated with one single SPAM message is .3 grams of CO2 which is the same as driving your car 3 feet. When you take into account that there are 62 trillion, (yes that says trillion and not million or billion), SPAM messages sent globally each year, it is like driving your car around the Earth 1.6 million times."