In the past 540 million years, the Earth has endured five mass extinction events, each involving processes that upended the normal cycling of carbon through the atmosphere and oceans. These globally fatal perturbations in ...
Earth Sciences
Sep 20, 2017
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We rely on climate models to predict the future, but models cannot be fully tested as climate observations rarely extend back more than 150 years. Understanding the Earth's past climate history across a longer period gives ...
Earth Sciences
Oct 4, 2022
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433
(Phys.org)—The Permian geologic period that ended the Paleozoic era climaxed around 252 million years ago with a sweeping global mass extinction event in which 90 to 95 percent of marine life became extinct. It would take ...
New research finds there is a distinct sound coming from a massive community of fish, shrimp, jellies and squid as they travel up and down from the depths of the ocean to the water's surface to feed. This sound could be serving ...
Earth Sciences
Feb 19, 2016
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New research shows a species of diatom, a single-celled algae, thought to be asexual does reproduce sexually, and scientists learned it's a common compound - ammonium - that puts the ubiquitous organism in the mood.
Plants & Animals
Jul 7, 2017
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584
The end-Permian mass extinction is the most severe mass extinction event ever recorded, during which ~80% of marine species went extinct.
Earth Sciences
Jun 21, 2022
1
119
Computer simulations conducted at the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) could help scientists make sense of a recently observed and puzzling wrinkle in one of nature's most important ...
Condensed Matter
Aug 22, 2013
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0
A "cold snap" 116 million years ago triggered a similar marine ecosystem crisis to those witnessed in the past as a result of global warming, according to research published today in Nature Geoscience.
Earth Sciences
Jun 16, 2013
57
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Dramatic drops in oceanic oxygen, which cause mass extinctions of sea life, come to a natural end - but it takes about a million years.
Earth Sciences
May 12, 2017
0
346
The supply of dissolved iron to oceans around continental shelves has been found to be more variable by region than previously believed – with implications for future climate prediction.
Earth Sciences
Jul 19, 2013
22
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