Climate change is melting away glaciers around the world, but in the Andes Mountains, a wild relative of the llama is helping local ecosystems adapt to these changes by dropping big piles of dung.

As the planet warms, it risks crossing catastrophic tipping points: thresholds where Earth systems, such as ice sheets and ...

Flips between warm temperatures to cold and vice versa have become quicker, more frequent and more intense in recent decades, a new study shows. By Christina Kelso A September heat wave switching into ...