Of the six sloth species, the pygmy sloth is the only one listed as critically endangered. The pygmy sloth lives off the coast of Panama and is threatened by climate change and habitat loss.

The sloth is the world's slowest mammal, so sedentary that algae grows on its furry coat. The plant gives it a greenish tint that is useful camouflage in the trees of its Central and South ...

Scientists have known for years that wolverines are threatened by climate change. They usually reside in Arctic and subarctic latitudes — and, when venturing south, they stick to high altitudes ...

Now two alarming new studies have been released that predict that the long-term security of our food crops be further compromised by climate change and other environmental factors. Now two ...

Emperor penguins are not simply majestic. These birds are tough creatures who manage to survive in some of the harshest weather conditions imaginable. The penguins breed and live on frozen sea ...

Different sloth groups can be easily identified by the number of long, curved claws on their forelimbs. The two-toed sloths, as the name suggests, have two claws on their front limbs, while the ...

High interest rates make green start-up costs soar. Officials at the U.N. climate summit fear the world could miss an opportunity to avert future greenhouse gas emissions. By Jim Tankersley and ...

New York congressman George Santos may have been expelled from Congress Friday, but he could be welcomed where imaginative takes on reality are the norm, according to John Oliver. On the latest ...

Research shows that bullet trains are a reliable, resilient alternative to flight disruptions caused by high winds and storms due to planetary warming. Air travel generates a lot of carbon ...

A historic agreement at the international climate talks will provide hundreds of millions of dollars for developing countries. It's nowhere near enough. The Indigenous peoples chapter of the ...

The president of the COP28 and the environmental defense fund declared a deal that aims to reduce methane emissions over the next five years. A look at the numbers on global climate change as ...