From: Climate Progress
By Jeff Spross
The southern leg of the Keystone XL pipeline begins shipping crude oil Wednesday, the Washington Post reports.
Because the southern portion only runs from Oklahoma to the Texas
Gulf Coast, thus crossing no international boundaries, it did not
require approval from the State Department. The proposed northern leg,
however, would cross the U.S.-Canada border, and the Obama
Administration has yet to issue its final decision on whether to approve
it.
The northern leg would create a direct route by which Canadian oil
sands — one of the most carbon-heavy forms of crude — could reach the
global oil market. The environmental movement has acted to oppose
Keystone XL en masse, making approval of the pipeline one of the most
bitterly disputed issues in U.S politics.
The State Department’s controversial initial draft assessment
of the northern leg assumed its climate impact would be minimal,
because without the pipeline the oil would simply be shipped by rail.
But multiple studies and the heavy investment of Canadian oil producers in the pipeline’s construction belie that assessment. MORE
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