When mountain permafrost thaws and glaciers melt, glacial lakes can become lethal flood risks for anyone downstream.
NASA's Landsats captured views of a Swiss glacier 40 years apart, showing how a warming world has reduced its footprint.
The world is a tapestry of diverse wildlife, each thread representing a unique species. Among the most majestic of these ...
"Vanishing into thin air." Scientists alarmed by 'new normal' observed on slopes of Mount Everest: 'This is a wake-up call' ...