Giovedì, 18 Ottobre 2018
VICENZA

Science study blames hot climate for Triassic extinction

English
© ANSA

(ANSA) - Vicenza, October 18 - A research team led by a
Chinese scientist has found evidence that mass extinction in the
Triassic period may have been caused by high temperatures on
earth.
A new study published in Science, conducted by a team
coordinated by Yadong Sun, professor of geoscience at the
University of China in Wuhan, found that one of the earth's most
devastating mass extinctions - which happened at the beginning
of the Triassic period, between 252 and 247 million years ago -
may have been caused by lethally hot temperatures during a
period of acute, natural global-warming.
A series of powerful volcanic eruptions in Siberia caused a
severe green-house effect, according to the study.
"Global warming has played a important role and contributed
numerous crises for life on earth," said Sun.
According to the researchers' reconstruction, ocean water
near the equator during the early Triassic period almost reached
40 degrees celsius, or about 10 to 15 degrees higher than
current temperatures.
At equatorial latitudes, oceans were nearly lifeless, and
high temperatures near the equator led both to mass extinction
and mass migration of animals and insects to northern and
southern climes.

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