Reuters: The head of the U.S. Environmental Protection Agency said on Friday she hoped Pope Francis' upcoming message to his flock on the environment would help galvanize concern about climate change and convince skeptics that "the science is real". EPA administrator Gina McCarthy, visiting the Vatican to discuss climate change, said U.S. President Barack Obama shared the pope's belief that it was a moral issue because its effects would be felt most by the poorest and weakest nations. "The pope knows his...