Last Interglacial: the story on HearLore

Global Climate Dynamics

The Earth's orbital parameters shifted during the early phase of this interglacial period creating greater seasonal temperature variations across the Northern Hemisphere. Temperatures peaked between 128,000 and 123,000 years before present before declining steadily through the latter half of the interval. Arctic regions experienced temperatures roughly two to four degrees Celsius higher than conditions recorded in 2011. Greenlandic ice cores revealed pronounced temperature swings indicating highly unstable climate patterns during this era. Forests expanded northward reaching North Cape Norway which currently exists as tundra above the Arctic Circle. Hardwood trees including hazel and oak grew as far north as Oulu Finland during the peak warmth. A cooling event similar to but not exactly mirroring the 8.2-kiloyear event occurred at Beckentin within the E5 phase of the Eemian. Soil samples from Sokli in northern Finland identified abrupt cold spells around 120,000 years ago caused by shifts in the North Atlantic Current. These cold periods lasted hundreds of years and triggered significant vegetation changes across these northern regions. Winter temperatures rose throughout Northern Europe while summer temperatures fell over the course of the Last Interglacial. Meltwater from the Dnieper and Volga rivers connected the Black Sea and Caspian Sea during an insolation maximum spanning 133,000 to 130,000 BP.

When did the Last Interglacial period begin and end?

The Last Interglacial period began 130,000 years ago and ended approximately 118,200 years ago with an error margin of 6,300 years. Temperatures peaked between 128,000 and 123,000 years before present before declining steadily through the latter half of the interval.

Who discovered the geological bed known as the Eemian System?

Pieter Harting named this geological bed Système Eémien after the nearby river Eem in 1875 while examining boreholes near Amersfoort in the Dutch countryside. Subsequent researchers like Lorié in 1887 and Spaink in 1958 added detailed information about these molluscan groups to establish the foundation for identifying this warm period.

How high were global sea levels during the peak of the Last Interglacial?

Global mean sea surface levels reached heights approximately six to nine meters higher than current measurements during the peak of this warm period. Ocean waters rose as fast as two point five meters per century according to recent research on marine sediment cores offshore of the West Antarctic Ice Sheet.

Which animals lived in Europe during the Last Interglacial period?

Hippopotamus populations notably reached as far north as North Yorkshire in northern England though they did not extend much further east than the Rhine River. Large extinct megafauna including straight-tusked elephants and narrow-nosed rhinoceroses inhabited these temperate landscapes alongside Merck's rhinoceros.

Where did Neanderthals live during the Last Interglacial interval?

Neanderthals colonized higher latitudes of Europe during this time interval after retreating due to unfavorable conditions earlier but were absent from Britain likely because the region existed as an island. They engaged in diverse food-gathering activities including fishing and big-game hunting targeting straight-tusked elephants across these regions.

Last Interglacial.

Global Climate Dynamics

Sea Level And Geography

European Fauna And Flora

North American Megafauna

Human Evolutionary Context

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