Arctic sea ice may be disappearing, but until recently Antarctic sea ice was having the opposite experience. In February however, the extent of sea ice at the southern hemisphere experienced a record low, the second such event in five years. Researchers have now identified its proximate causes, but many mysteries remain.
Researchers from Sun Yat-sen University and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai) used sea-ice budget analysis to examine the sea-ice minimum in the summer of 2022.
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A new study reported record low Antarctic sea-ice extent in February, showing for the first time the sea-ice extent in the Antarctic shrank to below 2 million square kilometers since 1978, the launch of satellite observations of the poles.