The image below shows that the April ocean temperature anomaly in the Gulf of Mexico in 2020 was 1.71°C or 3.08°F higher than the 1910-2000 average, and the highest on record.
The high ocean temperature in the Gulf of Mexico are very worrying, as the Gulf Stream carries hot water along the path of the Gulf Stream toward the Arctic Ocean.
As the image below shows, the April ocean temperature anomaly on the Northern Hemisphere in 2020 was 0.97°C or 1.75°F higher than the 20th century average, and the highest on record.
An earlier analysis indicates that there is a tipping point at 1°C at which the sea ice underneath the surface of the Arctic Ocean disappears, which means that there will be little or no buffer left to consume the influx of ever warmer and salty water from the Atlantic Ocean and Pacific Ocean.
As long as there is sea ice in the water, this sea ice will keep absorbing heat as it melts, so the temperature will not rise at the sea surface. But there is ever less sea ice volume left to absorb ocean heat, and the amount of energy absorbed by melting ice is as much as it takes to heat an equivalent mass of water from zero to 80°C.
Meanwhile, temperatures keep rising globally and more than 90% of global warming is going into oceans.
As the temperature of the oceans keeps rising, the danger increases that heat will reach the seafloor of the Arctic Ocean and will destabilize hydrates contained in sediments at the seafloor, resulting in huge releases of methane.
The situation is dire and calls for immediate, comprehensive and effective action, as described in the Climate Plan.
Links
• Climate Plan
https://arctic-news.blogspot.com/p/climateplan.html
• Why stronger winds over the North Atlantic are so dangerous
https://arctic-news.blogspot.com/2020/02/why-stronger-winds-over-north-atlantic-are-so-dangerous.html
• Critical Tipping Point Crossed In July 2019
https://arctic-news.blogspot.com/2019/09/critical-tipping-point-crossed-in-july-2019.html
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