VATICAN CITY - Tackling the problem of climate change is a serious ethical and moral responsibility, Pope Francis told negotiators from around the world meeting for a climate summit in Lima, Peru. "The time to find global solutions is running out. We can find adequate solutions only if we act together and unanimously," he said in a written message to Manuel Pulgar-Vidal, Peru's minister of the environment and host president of the 20th UN Climate Change Conference. Thousands of negotiators from 195 countries gathered for the meeting in Lima Dec. 1-12 to hammer out details of a new international agreement...