Focus of the day: the melting of the glaciers, accelerated by global warming. The latter found more and more quickly, especially in Peru, which has more than 2000 glaciers. In 50 years, they have lost more than half of their area, leading to a change of landscape with dramatic consequences for the inhabitants of the Andes. The water they consume daily is now contaminated by heavy metals. Report by Agathe Fourcade and Martin Chabal.