Agence France-Presse: Peru’s Cordillera Blanca, a snow-topped northern mountain range sometimes called the “Peruvian Switzerland,” is slowly disappearing because of climate change, a key issue on the table of a Latin America-EU summit being held in Lima this week. The glaciers making up the range — declared a natural world heritage site by UNESCO — have steadily been shrinking, said Marco Zapata, the head of the glaciology unit of Peru’s National Institute for Natural Resources. He …