Ocean Currents and Ice Caps

14 April 2022
Climate change

At https://phys.org/news/2022-04-ice-caps-ocean-current.html … some findings seem to upset the applecart, diluting the climate catastrophe scenario. In the piece climate scientists regard the Atlantic Meridional Overturning Circulation [known in short as AMOC] as one of the causes fro abrupt climate change. Not just in the now and immediate but in the past as well. It is one of the bricks of the alarmist mantra, providing them with a scary tipping point. It seems that new research has inadvertently put a spanner in the works. AMOC does not create a tipping point. This appears to steal one of the enviros most potent ‘factoid’ used to berate doubters. This is somewhat better known as the Ocean Conveyor Belt System, an idea or hypothesis created in order to explain sudden and abrupt changes in climate, particularly at phases such as the Younger Dryas. Not only that the researchers claim freshwater inputs, or plumes of freshwater from calving icebergs or meltwaters from glaciers, have nothing to do with melting ice caps. It is warmer temperatures within the earth system that melt ice caps, and glaciers, and sea ice [especially in the Arctic]. Freshwater plumes were long thought to have caused disruption to AMOC.

Needless to say, the researchers employed a good deal of modeling and simulation. They even managed to show nothing out of the ordinary occurred at the Younger Dryas boundary. Neither did they include CMEs or electromagnetic processes with an origin in the Sun in their models. These pump energy into the earth system on a regular basis, sometimes more often than at other times. In the late 1990s and early 2000s for example. Lots of climate sceptic sites have jumped onboard these findings but their zeal may be misplaced.

At https://phys.org/news/2022-04-pacific-decadal-oscillation-modulates-el.html …  here we have a similar set of ocean currents but the piece is not concerned with polar ice caps. Instead, it is all about the cycle of El Nino and La Nina. Australia, for example, is dry during El Nino years but inclined to rain during La Nina periods. This is why flooding was reported this year and last year, overloading the rivers and reservoirs. In El Nino years the global temperature goes up and during the converse, in La Nina years it tends to be cooler. Hence, the last two hottest years on record [or at least during the last 30 years as that is about the limits of modern climate science] were in big El Nino years. It was portrayed in the media as global warming. That is of course true, global warming by El Nino [the dispersal of heat from the tropical Pacific to other parts of the globe via the Ocean Conveyor Belt, ultimately reaching the North Atlantic and the Arctic Ocean, where it melts more sea ice than in a non El Nino period.

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