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Antarctic warming to reduce animals at base of ecosystem, shift some penguin populations southward

100 years or so, things have been warming in the valleys. We have seen lake levels rise, more melt from the surrounding glaciers and more aquatic ecosystems replacing soil-based ecosystems."

Lyons sees what is happening now looking similar to what existed during the Eemian warming period ?a time 130,000 years ago before the last major glacial stage. "We know that the climate was warmer then, sea levels were higher by a couple of meters compared to today.

Lyons points to the fact that all the global climate models predict a warming in the Antarctic and a decrease in sea ice along its margins.

"Those two things will have great impacts on both the glacial dynamics of the continent but also on the fragile marine and terrestrial ecosystems that have been thriving there in the past."


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Source:Ohio State University


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