Identifier, creator, acquirer, and distributor of greenhouse gas emission reduction projects in the United States. The company's projects include energy conservation programs, wastewater treatment upgrades, intermodal transport advancements, pipeline construction for carbon dioxide capture, and geologic sequestration in oil recovery. It is split into two businesses: a project development arm and a carbon offset arm. The project arm works with large corporations to reduce greenhouse emissions. The carbon offset division markets emission reduction credits for companies. It is also a specialist in carbon sequestration, which involves capturing C02 and burying it into production fields to recover oil.