DAVID GREENE, HOST:
Let's check in another environmental debate. It focuses on the proposed Keystone XL pipeline from Canada. Environmental groups are stepping up their campaign against it.
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UNIDENTIFIED MAN: It's time to connect the dots about the Keystone XL pipeline. Oil spills. It's not if, it's when. It's happened...
GREENE: Ads like that are being countered by proponents who are lobbying President Obama to approve the pipeline. Among them, Alison Redford, premier of the Canadian Province of Alberta where the tar sands oil that will travel through the pipeline originates. This is Redford yesterday on NPR.
PREMIER ALISON REDFORD: What we know is that pipelines are the most effective and the most environmentally sustainable way to produce and to move product.
GREENE: The president is expected to decide soon on whether to approve the Keystone pipeline.
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GREENE: This is NPR News. Transcript provided by NPR, Copyright NPR.