There has been abundant sea ice in the Chukchi Sea this summer: so much so that walrus herds have not found it necessary to use beaches on the Alaskan coast as resting haulouts. Now, in early September, almost the entire northern Chukotka coast is covered in ice, blocking use of those beaches that have been traditionally used in September through November. Wrangel Island (an important denning area for polar bears) is still almost surrounded by ice, which hasn’t happened in decades.
Just two years ago, a big deal was made of the fact that the entire coast of Alaska was ice-free by early August and that walrus herds had come ashore at Point Lay earlier than any year since 2007 – all put down to climate change. Last year, walrus started to come ashore one day earlier than in 2019, on July 29. Although no one has presented any evidence that the walrus are suffering in any way due to using beach haulouts during the ice-free season (MacCracken et al. 2017), the haulouts are still presented as bad news and portends of catastrophe to come.
This year is a totally different story and of course, the biologists are suddenly silent.Continue reading