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The Trump administration has officially rescinded a nearly 16-year-old scientific finding that greenhouse gas emissions threaten public health and welfare a move that impacts most federal climate and air pollution regulations.

Scientists and public health experts say the evidence linking climate change to health hazards like heat-related illness, worsened air quality, and infectious disease spread is worsening.

For more on what this all means KCBS News Anchor Steve Scott spoke with Dr. Jonathan Levy, Professor and Chair of the Department of Environmental Health at Boston University.