Greenhouse Gas Websites
energystar.gov
ENERGY STAR® is the simple choice for energy efficiency. For more than 20 years, EPA’s ENERGY STAR program has been America’s resource for saving energy and protecting the...
59,739 
$ 224,640.00
carbonfootprint.com
Leading online carbon footprint calculation tools and information to help reduce and offset your emissions - for business and individuals.
146,185 $ 75,600.00