New member of Trump EPA science board says air quality in the US is too clean https://t.co/sCdcWV8FwV pic.twitter.com/y7H3diuJrz— The Hill (@thehill) November 4, 2017
New member of Trump EPA science board says air quality in the US is too clean https://t.co/sCdcWV8FwV pic.twitter.com/y7H3diuJrz