"The EPA found serious flaws in two earlier environmental reviews. Soon it will have another opportunity to weigh in, with climate impacts a major concern."
"One of the biggest unknowns in the unfolding Keystone XL debate is the role the U.S. Environmental Protection Agency might play."
"Because the Canada-to-Nebraska oil pipeline crosses an international border, the State Department, not the EPA, will decide whether to give the project the federal permit it needs. But the EPA will weigh in during the review, and its opinion will carry new weight now that the Obama administration has vowed to make climate change a national priority.
The EPA's position will become clearer when the State Department releases its Supplemental Environmental Impact Statement (SEIS) for the project, which it is expected to do any day now. Under the Clean Air Act, the EPA is required to review and comment publicly on the SEIS, and the agency has not been shy about criticizing earlier drafts."