Mossville Louisiana sits in the shadow of 14 petrochemical refineries. When residents felt the US Government wasn’t protecting their right to a healthy environment, they reached past the American regulators, legislators and courts to take their case to the highest human rights court in the western hemisphere. Now candid approval from the highest U.S. environmental regulator appears to have boosted their petition. Living on Earth and Planet Harmony’s Ike Sriskandarajah reports.