High Temperatures October 2020
September 2020 global surface air temperature was the highest September temperature on record, according to a Copernicus news release. The image below shows temperatures averaged over the twelve-month period from October 2019 to September 2020.
Keep in mind that anomalies are compared to the 1981-2010 average, so anomalies are higher when compared to pre-industrial levels. Also keep in mind that we’re in a La Niña period and that sunspots are low, which both are suppressing current temperatures, as discussed in a recent post.
Temperatures in the Arctic have been very high, as illustrated by the image below showing air temperature in the Arctic up to October 12, 2020 (red line).
Temperatures can be expected to remain high.
Without such a buffer, a rapid temperature rise of the Arctic Ocean can be expected to take place, threatening to destabilize methane contained in sediments at the seafloor of the Arctic Ocean.
• Arctic sea ice extent – Vishop, Arctic Data archive System, National Institute of Polar Research, Japan
• Climate Plan