Sea ice extents vary from day to day and year to year due to weather, USA TODAY previously reported. Because of this, researchers analyze long-term data sets to detect sea ice trends − they don ...

In early 2024, Walt Meier, a sea ice scientist at the National Snow and Ice Data Center, also told USA TODAY that the trend in Antarctic sea ice had been effectively flat since the late 1970s. "Global ...

An increase in large fires in the Western U.S. is being fueled by declines in Arctic Sea ice, and the impact of this decline on fires along the West Coast is as big as that of El Niño ...

As sea ice dwindles due to climate change, polar bears living in Western Hudson Bay are struggling to get enough to eat, leading to a decline in their population. Researchers from the University of ...

Scientists have quantified how much climate change has driven the population decline of polar bears living in Canada's Hudson ...

University of Toronto Scarborough researchers have directly linked population decline in polar bears living in Western Hudson Bay to shrinking sea ice caused by climate change.

A comparison of polar sea ice extents on two random days does not provide enough information to determine whether or not Earth's climate is changing.