One Year After Exxon's Arkansas Spill, 8 Crucial Questions Still Unanswered

Inside Climate News: It's been a year since a broken oil pipeline sent an estimated 210,000 gallons of Canadian dilbit into an Arkansas neighborhood, but there's still a long list of unknowns about the spill.

The most critical mystery yet to be resolved for the public: What caused ExxonMobil's Pegasus pipeline to break apart March 29 while the line was running well below its maximum approved pressure?

Read article