Report says tar sands oil no more likely to leak than other crude, but activists fault study's methodology, limited scope.
from grist
"Supporters of the Keystone XL pipeline cheered Tuesday’s release of a study that deemed diluted bitumen — the heavy crude mined in Alberta’s tar sands that Keystone would carry to Texas — just as safe to transport via pipeline as other forms of crude oil. They see the results as further clearing the way for approval of the pipeline.
"But environmental groups criticized the methodology and limited scope of the study, which was conducted by the National Academy of Sciences. From Inside Climate News:
[T]he conclusions were based not on new research but primarily on self-reported industry data, scientific research that was funded or conducted by the oil industry, and government databases that even federal regulators admit are incomplete and sometimes inaccurate. …:
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