In a victory for opponents of the Keystone XL oil pipeline, a judge in Nebraska has voided the state’s approval of the pipeline route. District Court Judge Stephanie Stacy struck down a 2011 law that allowed Gov. Dave Heineman to approve the pipeline’s passage through Nebraska, saying the decision should have been left up to a state commission. The pipeline would funnel tar sands oil from Canada to the U.S. Gulf Coast, but critics say it would fuel climate change and threaten the health of communities in its path. Obama has yet to issue a decision on whether to approve the pipeline.