POLAR bears, seals and walruses are among a host of wildlife being hit by “devastating changes” brought on by warming temperatures in the Arctic, scientists warned yesterday.

The US government has declared the polar bear a threatened species because of the loss of Arctic sea ice but also cautioned the decision should not be viewed as a path to address global warming.

HUMANS may have unwittingly saved themselves from a looming ice age by interfering with the Earth's climate, according to a new study.