When Scientists, Skeptics and Eco-Loons All Agree, Except for Catastrophic Storytelling
18 hours ago Guest Blogger
We all agree that the wind-driven surface flow of the Atlantic Multidecadal Overturning Circulation (AMOC) brings precious warmth from the tropics towards the Arctic & enables a milder climate in Europe and North America. We all agree it’s the oceans that tremendously effect climate and create temperature changes that cannot be explained by a CO2 greenhouse effect.
The AMOC is unique because 1) it carries tropical heat from the south Atlantic, across the equator into the north Atlantic and Arctic Ocean (red currents, graphic A). 2) it creates a reservoir of warm Atlantic water at 100 to 900 meters depth in the Arctic Ocean capable of melting all sea ice 4 times over (graphic C). 3) Because the Atlantic is saltier than the Pacific, it becomes dense enough to sink to the ocean floor when it cools, creating the pressure that drives a deep return current back to the Antarctic (blue currents, graphic A).
When the AMOC slows down, it delivers less heat to the Arctic. Now a growing ocean cold spot south of Greenland suggests the AMOC is indeed slowing down again. To protect global warming narratives, climate alarmists like Stefan Rahmstorf and Michel Mann push the idea that global warming is causing the cooling and that rising CO2 will soon cause a catastrophic AMOC collapse that freezes Europe and disrupts global climates. But the variations in the AMOC’s heat transport have been happening for millennia and do not correlate with changing CO2 concentrations.
https://wattsupwiththat.com/2024/12/08/when-scientists-skeptics-and-eco-loons-all-agree-except-for-catastrophic-storytelling/
