Arctic Sea Ice Shrinks to Second-Lowest Extent Amid Record High Temperatures Following the warmest summer on record in the Arctic, just 3.74 million square kilometers of Arctic sea ice remain. This is the second-lowest ice extent since satellite observations began in 1979 and only the second time that sea ice shrank below 4 million square kilometers.
New Study Narrows Window for Ice Free Arctic To As Early As 2044 A new study by scientists at UCLA narrows down forecasts for an “ice-free” Arctic to between 2044 and 2067. The researchers used a new approach using sea-ice albedo, or reflectivity, to improve the accuracy of climate models predicting Arctic sea ice loss.