It tells us that the Arctic Sea ice cover extent is rapidly and alarming decreasing but is that really true?
The new IPCC report: ”The Ocean and Cryosphere in a Changing Climate”, was published last week. It is an impressive and complex document consisting of 1170 pages and with hundreds of authors and contributors. The report is an update of previous IPCC reports, specifically concerning the climate changes’ impacts on the sea, snow and ice. However, are all of findings in the IPCC report trustworthy?
A decreasing extent of the Arctic Sea ice cover has always been used as strong argument for man-made climate changes, and in 2007, when IPCC and Al Gore received the Nobel Prize, they predicted based on the IPCC work that during the next 7 years, the summer Arctic Sea ice would disappear completely. However, that never happened; in 2014 the minimum extent of the ice cover was much greater than in 2007!
During the summer 2019 they also made a worldwide public alarm about rapid melting Arctic ice, predicting that in September 2019 the ice extent would the lowest, since measurements began. Neither that happened! The minimum ice extent in September 2019 became a little greater than the ice extent in 2007 – 12 years earlier! All time’s ice minimum occurred in 2012.
Never the less, in the 2019 IPCC report on page 4 in the summary for policymakers the following statement is written:
“A1.4 Between 1979 and 2018, Arctic sea ice extent has very likely decreased for all months of the year. September sea ice reductions are very likely 12.8 ± 2.3 % per decade.”
Based on the satellite data published by the reliable US National Snow & Ice Data Center in Boulder, Colorado (http://nsidc.org) I have made a column diagram illustrating the trend in minimum Arctic Sea ice extent in September for the years 2007-2019.
Although these data must be well-known for the IPCC experts, I could not find them in the new report. Twelve years are more than a decade but yet no such ice decrease has happened as predicted but only some smaller, probably natural, annual variations, which are difficult to associate with the gradually, rapid increasing atmospheric CO2 concentration.
Therefore, concerning the Arctic Sea ice IPCC is not trustworthy, and their alarming public news about that issue is wrong! I found the same mistake and other mistakes in the IPCC report from last year about the consequences of a 1½ degree global warming. When my study of the new report proceeds, I may again find other mistakes.
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