Climate News Network: The loss of Arctic sea ice is bad news for the Pacific walrus, and for polar bears: the walrus has further to swim to dig for clams on the sea floor, and the polar bear has less chance of catching seals. But the real problems begin at the base of the food chain.
Since the end of the last century, more than two million square kilometers of sea ice have disappeared, and the loss of summer ice is accelerating. Researchers call this "a stunning loss of habitat for sea ice algae and sub-ice plankton...