Dave Heineman

Keystone XL oil pipeline: What you need to know about the dispute

Keystone XL oil pipeline: What you need to know about the dispute

One of the biggest environmental controversies of the Obama administration got locked up in Congress again this week, when the Republican-controlled Senate failed to override President Obama's recent veto of legislation that would have forced a decision on the Keystone XL pipeline.

From the halls of Congress to courthouses in heartland states, the project has created a stark divide. Critics believe the planned 1,179-mile pipeline undermines efforts to slow climate change and could threaten a crucial aquifer. On the other hand, construction of the pipeline would undoubtedly create jobs. But what then?

With debate over the pipeline nearing its peak, here's some...

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