By Lisa Song, SolveClimate News
The Canadian company TransCanada wants to build a 1,702-mile pipeline that will pass through Nebraska’s Ogallala aquifer as it transports heavy crude oil from tar sands mines in Alberta, Canada to refineries on the Gulf Coast. Supporters of the Keystone XL pipeline say it will improve U.S. energy security and decrease reliance on Middle Eastern oil. Opponents say that extracting and processing the thick oil will endanger the aquifer and increase greenhouse gas emissions. The U.S. Environmental Protection Agency says that on a “well-to- tank” basis the heavy oil extracted is 82 percent more carbon intensive than conventional oil. That estimate sits in a middle ground between widely varying claims offered by industry and environmentalists.
Since the pipeline will cross an international border, TransCanada must get a presidential permit from the State Department before it can build and operate the line. In July 2010, the EPA gave the State Department’s first draft Environmental Impact Statement (EIS) of the project the lowest possible grade of “inadequate,” creating an inter-agency tussle that has delayed the permit decision. Although a second draft EIS did better, the EPA said more analysis was still needed to fully evaluate the environmental risks. The State Department’s final environmental review of Keystone XL is expected this month.