What is "terrapass"

TerraPass is a social enterprise that provides carbon offsetting products to individuals and businesses. Headquartered in San Francisco, California, TerraPass uses proceeds from member purchases to fund greenhouse gas reduction projects such as wind farms and methane digesters. TerraPass products include a Road TerraPass to offset car emissions, a Flight TerraPass to offset airplane emissions, a Home TerraPass for home energy use, a Business TerraPass for organizations, and a Wedding TerraPass for weddings and other events.