In parts of the Arctic, polar bears are in decline as sea ice, which they depend on to hunt, disappears. That is not the case, however, on the Norwegian island of Svalbard, where bears have actually managed to grow more plump even as ice melts away.

To reduce air pollution associated with ocean transport, the International Maritime Organization tightened restrictions on sulfur content in ship fuel, resulting in an 80% reduction in emissions by 2020.

Trees play a central role in life on Earth. They store CO₂, provide habitats for animals, fungi, and insects, stabilize soils, regulate water cycles, and supply resources that humans rely on – from timber and food to recreation and shade on a hot day.

Agricultural waste that is usually burned or left to rot could play a far bigger role in tackling climate change if it were instead used in long-lasting building materials, according to new research from the University of East London (UEL).

Large-scale melting of the Greenland Ice Sheet is irreversible and happening at a rapid rate, and now a new international study is the first to understand why.

Solar panels on bodies of water in the northeastern U.S. might generate renewable energy but could also carry risks for birds, especially water birds.

In the time it takes to blink, octopus and cuttlefish can seemingly disappear into their underwater environment by changing both the color and texture of their skin. 

A new analysis of air quality data from the past 70 years shows that Canada’s record wildfire smoke in 2023 is part of a broader, continent-wide trend toward smokier skies across North America.

Forensics experts gather DNA to understand who was present at a crime scene. 

Microbes across Earth’s coldest regions are becoming more active as glaciers, permafrost and sea ice thaw, accelerating carbon release and potentially amplifying climate change, according to a new international review from McGill University.