main_antarctic-seaice-max

Why does the Antarctic sea ice trend resist decline?

From NSIDC: Antarctic sea ice: an update Antarctic sea ice extent continues to make headlines because it has grown even as much of the globe, and Antarctica itself, is warming. Arctic sea ice, in contrast, is showing a marked decline. Warmer air and ocean waters are bathing both poles, so why does the Antarctic sea…

antarctica-image

Warming ocean water undercuts Antarctic ice shelves

From the UNIVERSITY OF COLORADO AT BOULDER “Upside-down rivers” of warm ocean water threaten the stability of floating ice shelves in Antarctica, according to a new study led by researchers at the University of Colorado Boulder’s National Snow and Ice Data Center published today in Nature Geoscience. The study highlights how parts of Antarctica’s ice sheet…

percentage of ocean that has sea ice cover

The Ice Was All Between

Guest Post by Willis Eschenbach I do my best to maintain my sense of awe regarding the things I study. I’ve had the good fortune in my life to be a commercial fisherman on the Bering Sea, and to voyage and fish on the edges of the Arctic ice. To me, sea ice, whether fixed…

Antarctic circulation

The Warmer The Icier

Guest Post by Willis Eschenbach A WUWT commenter emailed me with a curious claim. I have described various emergent phenomena that regulate the surface temperature. These operate on time scales ranging from minutes to hours (e.g. dust devils, thunderstorms) to multi-decadal (e.g. Atlantic Multidecadal Oscillation, Pacific Decadal Oscillation). He suggested that there is also a…

480px-Antarctica_6400px_from_Blue_Marble[1]

Colossal Antarctic ice-shelf collapse followed last ice age

From the “things Earth does without our help” department: Study: 100,000 square miles of Ross Ice Shelf disappeared in 1,500 years From RICE UNIVERSITY HOUSTON — (Feb. 18, 2016) — In a new study that provides clues about how Antarctica’s nation-sized Ross Ice Shelf might respond to a warming climate, U.S. and Japanese oceanographers have…