The annual change, the ACE CRC reports, is "one of the biggest natural changes" observed anywhere on Earth.
The ACE CRC's report says that since 1979, the amount of sea ice coverage around Antarctica has been rising by about 285,0000 square kilometers every decade.
By contrast, the Arctic has been losing 1.8 million square kilometers per decade.
But Antarctica appears to be a much more complex beast than the Arctic, where sea ice is on a downward trend pretty much everywhere as the region warms at roughly twice the global average.