Duke Energy Corp. and Dominion Energy Inc. have canceled the controversial 600-mile-long Atlantic Coast Pipeline that the companies planned to build under the Appalachian Trail. The energy giants called off the $8 billion project “due to ongoing delays and increasing cost uncertainty which threaten the economic viability of the project.” This news comes as a win for the environmentalists who have spent years fighting this disruption to the Appalachian Trail in West Virginia, Virginia and North Carolina.