Add Yahoo as a preferred source to see more of our stories on Google. Many tropical glaciers in the Andes are expected to disappear in the next few decades. Their meltwater sustains millions of people ...

Many tropical glaciers in the Andes are expected to disappear in the next few decades. Their meltwater sustains millions of people, feeding crops in the dry season, supplying Peru’s capital Lima and ...

MARCACOCHA, Peru (Reuters) - A period of global warming contributed to the rise of the Inca empire, allowing it to increase food production by planting at higher altitudes on farmland irrigated with ...

NOVA: What was your first impression of Machu Picchu? Ken Wright: When I arrived in 1994, my first visit ever, I was blown away by the view of Machu Picchu itself and also by the surrounding territory ...