Over the past 40 years of satellite observation, Antarctic sea ice defied global warming predictions and gained impressively. The mean temperature of the southern ice cap also shows no warming. In 2017, after decades of inconvenient rise, sea ice extent suddenly fell to record low level and panic activity among global warming alarmists began to perk up. Surely the days of a growing Antarctic ice cap were over – at least they hoped.
But since 2017, the ice has grown back and once again has reached near normal levels and the long-term trend continues to be upward.