Efrain Reyes Villanueva, a radio operator, checks drainage pipes at the Palcacocha Lake, located at 4,650 meters above sea level in the Huascaran National Park, in Huaraz, northeastern Peru, on May 23, 2022. - Saul Luciano Lliuya, a farmer and tourist guide of the Cordillera Blanca of the Peruvian Andes, is carrying out a legal battle so that German energy giant RWE is declared by the German justice responsible for the melting of the Peruvian glaciers, for its emissions of greenhouse gases. (Photo by Luka GONZALES / AFP)