August 17 Arctic sea ice area is the highest since 2004.
But it is worse than it seems. Arctic data is cleverly cut off at the 1979 peak, but the 1990 IPCC report showed that there was much less ice in 1974 than in 1979.
So I overlaid the current data on the 1990 IPCC graph, and it turns out that ice coverage now is similar to 1974.
Reports from 1974 also indicate that there was 12% increase from 1971 to 1974.
Another Ice Age?
Monday, Jun 24, 1974
Climatologist George J. Kukla of Columbia University’s Lamont-Doherty Geological Observatory and his wife Helena analyzed satellite weather data for the Northern Hemisphere, they found that the area of the ice and snow cover had suddenly increased by 12% in 1971 and the increase has persisted ever since.
So I drew another circle approximating 1971 conditions. It is possible that there is more ice coverage now than in 1971.
This is just a very rough comparison, as it is comparing extent vs. area. But it shows the cyclical nature of Arctic ice, as opposed to the mindless linear trends published by NSIDC.