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Younger Dryas

All articles tagged with #younger dryas

Ancient volcanic bursts reveal AMOC’s vulnerability to climate disturbance
science1 month ago

Ancient volcanic bursts reveal AMOC’s vulnerability to climate disturbance

New research links the Younger Dryas cooling (12,900–11,700 years ago) to a cluster of volcanic eruptions that disrupted the Atlantic Meridional Overturning Circulation, showing the AMOC’s sensitivity to disturbances; today, scientists warn that the AMOC could weaken or collapse due to human-caused CO2, but volcanic activity is not the immediate threat, highlighting how rapid climate shifts could arise if this ocean conveyor belt slows.

via USA Today|
#amoc#atlantic-ocean#climate-change
New Evidence Reveals Cause of Greenland Ice Sheet Mystery
science8 months ago

New Evidence Reveals Cause of Greenland Ice Sheet Mystery

New research suggests that a platinum spike found in Greenland's ice core around 12,800 years ago, previously thought to indicate a meteorite impact, was likely caused by a volcanic fissure eruption in Iceland, which may have contributed to the onset of the Younger Dryas cold period by releasing sulfur and heavy metals into the atmosphere. This finding challenges the impact hypothesis and highlights the role of volcanic activity in past climate shifts, emphasizing the importance of understanding such events for future climate predictions.

via The Conversation|
#climate-change#greenland-ice-sheet#platinum-spike
Ancient Comet Impact May Have Caused Global Catastrophe and Lost Civilizations
science9 months ago

Ancient Comet Impact May Have Caused Global Catastrophe and Lost Civilizations

Scientists suggest that a cosmic explosion, possibly from a comet fragment, around 12,800 years ago caused a massive impact event in Louisiana, creating a crater and supporting the Younger Dryas Impact Hypothesis, which links the event to the sudden climate change and the destruction of an advanced ancient civilization.

via GreekReporter.com|
#airburst-crater#ancient-civilization#cosmic-explosion
Ancient Comet Impact Linked to Climate Chaos and Extinctions
science1 year ago

Ancient Comet Impact Linked to Climate Chaos and Extinctions

New research supports the Younger Dryas Impact hypothesis, suggesting a fragmented comet caused significant climatic changes and extinctions 12,800 years ago through airbursts. Evidence includes impact proxies like platinum and shocked quartz found in the eastern U.S., indicating high-pressure, high-temperature events. These findings suggest the comet's airbursts led to abrupt climate shifts and the extinction of megafauna, impacting human cultures like the Clovis.

via SciTechDaily|
#climate-change#comet-impact#extinctions
"The Persistent Resurgence of the Comet Strike Theory"
science2 years ago

"The Persistent Resurgence of the Comet Strike Theory"

Despite mainstream science's efforts to debunk the theory, the belief in a world-changing series of prehistoric comet impacts 12,900 years ago continues to gain momentum. Researchers led by Richard Firestone claimed that these impacts caused a sudden cooling, contributed to the demise of large Pleistocene mammals and humans, and prompted a turn toward agriculture in Eurasia, potentially influencing the development of civilization and even the outlines of current nation-states.

via The New York Times|
#climate-change#comet-strike#prehistoric-impacts
"Earth's Dramatic Transformation: The Impact of a Comet 13,000 Years Ago"
science2 years ago

"Earth's Dramatic Transformation: The Impact of a Comet 13,000 Years Ago"

New research suggests that a comet impact around 13,000 years ago triggered a dramatic climate change, leading to the disappearance of plants and animals relied upon by hunter-gatherer communities. The impact, which caused shockwaves and a massive firestorm, is believed to have sparked the first seeds of agriculture in Syria as a necessary adaptation for survival. Sediment layers from the Neolithic site Abu Hureyra, known for its early evidence of the shift from hunting-gathering to farming, revealed changes in architecture, diet, and the cultivation of domestic-type grains and legumes. The studies also identified shock-fractured quartz grains and evidence of a massive firestorm, supporting the hypothesis that a cosmic impact caused the Younger Dryas period of climate change.

via ScienceAlert|
#agriculture#archaeology#climate-change