“I am personally amazed at how resistance to the Keystone XL tar sands pipeline and education as to what tar sands exploitation looks like continues to grow every day,” Johnson wrote in a statement before his protest. “Because it would be irresponsible, we're not stopping until the industry stops poisoning our futures with lies, unnecessary risks and death for their profit.”
Developer TransCanada is building the southern leg of its Keystone XL pipeline after failing to get a presidential permit for the full protect.
The 485-mile line between the oil storage hub at Cushing and refineries along the Gulf Coast is expected to be completed this summer.
TransCanada also has renewed its application for a permit to build its pipeline across the U.S.-Canada border.