The Andes mountains and their extensive foothills form one of the planet's most crucial water distribution networks, ...

Conventional wisdom says a river's flood plain builds bit by bit, flood after flood, whenever the stream overflows its banks and deposits new sediment on the flood plain. But for some vast waterways ...

Climate change is projected to have a strongly negative effect on water supplies in the arid mountains of South America, significantly impacting millions of people. As one of the poorest countries in ...

Felipe Kittelson remembered playing in Bolivia's snow for hours on end. He'd play until his eyes and ears ached from the cold and the altitude, he told the BBC in 2016. He recalled the treats he and ...

EL ALTO, Bolivia — When they first started climbing the Andes peaks, they could hear the ice crunching under their crampons. These days, it’s the sound of melted water running beneath their feet that ...

The Andes Mountains are the world's longest mountain range. Learn which South American countries the massive Andes Mountains ...

Millions of people living near the Andes Mountains face a significantly higher risk of a giant earthquake than previously thought, and such a temblor could be more than 10 times stronger than anything ...

The glaciers of the Andes Mountains have retreated at an unprecedented rate in the past three decades, with more ice lost than at any other time in the last 400 years. That's according to a new review ...

La Paz is a tough city for mass transit. It was built by Spanish conquistadors, who laid out narrow, winding streets, and sits in a bowl-like depression with neighborhoods rising up the craggy slopes ...