Philadelphia Inquirer: On Dec. 5, 2007, EPA Administrator Stephen L. Johnson prepared to send the White House an extraordinary document. It declared that climate change imperiled the public welfare – a decision that would trigger the nation’s first mandatory global-warming regulations. Johnson, a career scientist, knew that his draft would meet with resistance from antiregulatory ideologues at the White House, but he believed the science was solid. According to confidential records reviewed by The …