Add Yahoo as a preferred source to see more of our stories on Google. A polar bear (Ursus maritimus) walks on pack ice in Svalbard, Norway. Andy Rouse, Nature Picture Library Polar bears are often the ...

Add Yahoo as a preferred source to see more of our stories on Google. A polar bear with her cub on a snowy beach in Svalbard, Norway on September 17, 2025 - Magnus ...

A new study has found that the trunks of trees in the Amazon have become thicker in recent decades — an unexpected sign of the rainforest’s resilience in response to record-high levels of CO2 in the ...

As the sea ice melts due to climate change, the trend of polar bears getting thinner and having fewer cubs has been well documented in areas such as Baffin Bay, a stretch of ocean between Greenland ...