High above the Amazon rainforest, invisible currents of water vapour move through the sky in narrow, fast-flowing bands, ...

Experts often warn about the “tipping point” for the Amazon, a scenario in which the rainforest collapses into a drier, less biodiverse savanna ecosystem. But the term “tipping point” is sometimes ...

Droughts have withered crops in Peru, fires have scorched the Amazon and hydroelectric dams in Ecuador have struggled to keep the lights on as rivers dry up. Scientists say the cause may lie high ...

Many people view a river in a very visual way. They have banks, moving water, and an obvious pathway through the land. But one river fits none of these descriptions. Instead of moving through the ...

Add Yahoo as a preferred source to see more of our stories on Google. FILE - Cut down trees lie within view of the Cordillera Azul National Park, seen in the background near Chambira community, in ...