The number of spam emails sent out in 2008.
Kilo-watt-hours of energy used by spam.
Homes that could be powered by wasted energy.
Annual carbon dioxide the average business user is responsible for in email-related emissions.
3.1 Million/2 Billion:
Cars/gallons of gas to which wasted spam energy equates.
McAfee and ICF International
The Carbon Footprint of Email Spam Report