WDTV: Heavily concerned about the future of the planet, environmentalists and public health officials were in Pittsburgh to testify at the EPA's public hearings. Though the harmful affects of CO2 emissions are among the reasons why they support the Clean Power Plan, there's more to it then that. They used phrases like "moral imperative," calling this the most important issue of our time. "We have a common calling to care for Creation and care for the most vulnerable people, and those things come together...