Climate Desk: President Obama welcomed Pope Francis to the White House Wednesday morning to loud cheers from thousands gathered to greet the leader of the Catholic churchin a city that has virtually shut down for the historic event. The ceremony marks the first time that Pope Francis has visited the United States and kicks off a much anticipated three-city tour that includes Washington D.C., Philadelphia, and New York City. During his first address in the United States, Francis pulled no punches when talking...