Reuters: The United Nations issued a range of rival ideas for fighting climate change from rich and poor nations on Wednesday and said the world was “not standing still” in work on a new U.N. treaty. The 53-page text included suggestions that rich nations set aside up to 2 percent of their gross national product to help the poor cope with global warming, while rich countries called for developing nations to do more to limit greenhouse gas emissions. “This document marks an important …