Allowing the Keystone pipeline to be built requires a finding that doing so would be in our nation’s interest. And our national interest will be served only if this project does not significantly exacerbate the problem of carbon pollution. The net effects of the pipeline’s impact on our climate will be absolutely critical to determining whether this project is allowed to go forward. It’s relevant.
The EPA, reviewing the State Department’s environmental impact assessment of the Keyspan proposal:
As recognized by the DSEIS (Department of State’s draft Supplemental Environmental Impact Statement), oil sands crude is significantly more GHG intensive than other crudes, and therefore has potentially large climate impacts. The DSEIS reports that lifecycle GHG emissions from oil sands crude could be 81% greater than emissions from the average crude reformed in the U.S. in 2005 on a well-to-tank basis, and 17% greater on a well-to-wheels basis. This difference may be even greater depending on the assumptions made. The incremental emissions from oil sands crude transported by the Project would therefore be 18.7 million metric tons C02-e (carbon dioxide equivalent) per year when compared to an equal amount of U.S. average crudes, based on the Project’s full capacity of 830,000 barrels of oil sands crude per day. To place this difference in context, we recommend using monetized estimates of the social cost of the GHG emissions from a barrel of oil sands crude compared to average U.S. crude. If GHG intensity of oil sands crude is not reduced, over a 50 year period the additional C02-e from oil sands crude transported by the pipeline could be as much as 935 million metric tons.
The whole report is interesting, though laden with acronyms. The EPA decided that there’s insufficient information to make a clear decision at this point, tossing the ball back into State’s court. They specifically focus on a central conclusion of the DSEIS report — that the tar sands oil will find a way to market whether or not the pipeline is built. EPA doesn’t contest that point directly, but requires more sophisticated and modern modeling of the impacts of these alternates routes of getting the oil to the US. This makes sense — if the oil will be pulled from the ground and travel to and through the US, then all possible routes and methods of transport must be equally evaluated.
That said, the current analysis of Keystone indicates it could “significantly exacerbate the problem of carbon pollution.”