While Arctic sea ice has been diminishing in recent decades, the Antarctic sea ice extent has been increasing slightly. Researchers from the Georgia Institute of Technology provide an explanation for the seeming paradox of increasing Antarctic sea ice in a warming climate. The paper appears in the Early Edition of the Proceedings of the National Academy of Science the week of August 16, 2010.The word "paradox" is defined as "A seemingly contradictory statement that may nonetheless be true." As Watts Up With That? commenter Rob Dawg says:
"We wanted to understand this apparent paradox so that we can better understand what might happen to the Antarctic sea ice in the coming century with increased greenhouse warming," said Jiping Liu, a research scientist in Georgia Tech’s School of Earth and Atmospheric Sciences.
For the last half of the 20th Century, as the atmosphere warmed, the hydrological cycle accelerated and there was more precipitation in the Southern Ocean surrounding Antarctica. This increased precipitation, mostly in the form of snow, stabilized the upper ocean and insulated it from the ocean heat below. This insulating effect reduced the amount of melting occurring below the sea ice. In addition, snow has a tendency to reflect atmospheric heat away from the sea ice, which reduced melting from above.
However, the climate models predict an accelerated warming exceeding natural variability with increased loading of greenhouse gases in the 21st century. This will likely result in the sea ice melting at a faster rate from both above and below.
When a model fails to reflect the data it is not a paradox. A paradox is when to two equally true things are mutually exclusive. There is no paradox for a broken model to exist right along with contradictory data.No wonder the doomsayers still predict dangerous global warming--any contrary data is dismissed as a paradox. Warming, therefore, forever remains unfalsifiable. Meaning it's not science -- even where it was plagiarized! And that's the real meltdown.
BTW, it's "global warming day" on NOfP -- four posts in 18 hours.
(via Watts Up With That?)