President Donald Trump returned to western Pennsylvania Friday to announce an ending to the months-long saga to decide who would own the Pittsburgh-based steelmaking company U.S. Steel.  But even as the deal moves toward a resolution, questions about what it will mean for public health, local economies and climate change linger. U.S. Steel’s coal-based steelmaking … Continue reading U.S. Steel Is a Major Source of Pollution in Pennsylvania. Will Its Sale Lock in Emissions for Another Generation?