what's your CO2 footprint?
-
07:41:07 pm on Aug 23, 2009
what’s your CO2 footprint from electricity usage?
kWh
kg of CO2 or
trees work for a year to clean it
what's your CO2 footprint?
what’s your CO2 footprint from electricity usage?
kWh
kg of CO2 or
trees work for a year to clean it