Fishermen fish for trout in Titicaca Lake along the Royal Mountain Range near Santiago de Huata, Bolivia, Friday, Dec. 18, 2009. Climate change could alter the rain patterns along the Royal Mountain Range and in turn affect the survival of the ecosystems that depend on it, according to Edson Ramirez, chief glaciologist at Bolivia's UMSA university. Meanwhile in Copenhagen, world leaders try to reach a global agreement to combat global warming.
(AP Photo/Dado Galdieri)