Environmental groups challenge Keystone XL pipeline (AP)

Josh Funk (AP)

OMAHA, Nebraska ? A coalition of environmental groups challenged the federal permit for the Keystone XL oil pipeline in court because they say additional environmental scrutiny is needed.

The Sierra Club, Natural Resources Defense Council and other groups say the initial environmental review completed in 2014 is inadequate and outdated, and that it underestimated how much the pipeline would encourage tar sands oil production in Canada.

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