Millions of international viewers enjoyed watching the reality TV show "Ice Road Truckers," in which experienced truck drivers were expected to master scary challenges, such as transporting heavy supplies across frozen lakes in the remote Arctic. According to a new study by an international team of climate and lake scientists and published in the journal Earth's Future, crossing frozen lakes with heavy trucks may soon be a matter of the past.

An international team of researchers have sounded new alarm bells about the changing chemistry of the western region of the Arctic Ocean after discovering acidity levels increasing three to four times faster than ocean waters elsewhere.

Sprawled on rocky ground far from sea ice, a lone Canadian polar bear sits under a dazzling sun, his white fur utterly useless as camouflage.

If global warming persists, blue lakes worldwide are at risk of turning green-brown, according to a new study which presents the first global inventory of lake color. Shifts in lake water color can indicate a loss of ecosystem health. The new research was published in Geophysical Research Letters.

A recent study of the gut microbiome of Alaskan brown bears (Ursus arctos) shows that the microbial life in bears' guts allows them to achieve comparable size and fat stores while eating widely different diets. The work sheds light on the role of the gut microbiome in supporting health in wild omnivores.