Researchers proposed massive meltwater pulses disrupted the thermohaline 'conveyor belt' carrying warmth to northwestern Europe via the Gulf Stream. However, scientists note it creates a tautological argument: meltwater caused cooling, but what caused the meltwater? The theory has a circular logic problem. 🔄🌊
Thermohaline Circulation Disruption Proposed as Younger Dryas Cause
Key facts
- Theory: Meltwater pulses interrupted thermohaline circulation in the North Atlantic
- The conveyor belt of warm water (Gulf Stream) delivers heat to northwestern Europe
- Freshwater influx disrupted deep water formation and ocean currents
- Speaker notes this creates a tautological argument: meltwater caused cooling, but what caused the meltwater?
- Speaker argues thermohaline disruption was an effect, not the ultimate cause of Younger Dryas
- Similar concerns raised about modern Greenland ice sheet melting
Sources
Deglacial Meltwater Pulse 1B and Younger Dryas Sea Levels ...college-de-france.hal.science
Furthermore, sea level rose more rapidly at the start of the Younger Dryas but slowed during the rest of the cold event. These findings have ...
The Great Ice Meltdown and Rising Seas: Lessons for Tomorrowsites.law.lsu.edu
Generalized sea level rise since the last ice age showing several meltwater pulses (MWP). ... During the Younger Dryas cold period, between ...
Sedimentological and morphological evidences of Meltwater Pulse ...sciencedirect.com
Younger Dryas sea-level slowstand controlled the establishment of coastal environments along the eastern Brazilian shelf. •. A shift from coastal to open marine ...
Meltwater pulse 1A - Wikipediaen.wikipedia.org
Meltwater pulse 1A is indicated. The rates of sea level rise associated with MWP1a are the highest known rates of post-glacial, eustatic sea level rise.
Younger Dryas sea level and meltwater pulse 1B recorded in ...agupubs.onlinelibrary.wiley.com
The Barbados sea level reconstruction excludes a measurable meltwater pulse as a trigger for the Younger Dryas and records a rise of 6 m ...
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