Mass extinctions are rapid global decreases in Earth's biodiversity, with five key events identified over the planet's history, arguably the most famous of which occurred ~66 million years ago during the Cretaceous, which ...
A new study describes a period of rapid global climate change in an ice-capped world much like the present—but 304 million years ago. Within about 300,000 years, atmospheric carbon dioxide levels doubled, oceans became ...
Earth Sciences
May 2, 2022
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Researchers examining subglacial waters both from Antarctica and Greenland found that these waters have higher concentrations of important, life-sustaining elements than previously thought, answering a big unknown for scientists ...
Earth Sciences
Nov 23, 2020
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As anyone with seasonal allergies knows, unseen airborne particles can really wreck a person's day. Like the tree pollen that might be plaguing you this spring, small concentrations of trace elements in the air can have significant ...
Environment
Apr 17, 2024
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Researchers have studied Greenland musk oxen that have been followed for 25 years to see how their feeding habits affect their reproductive success. And it turns out that when they go to areas with more copper and selenium ...
Plants & Animals
Feb 28, 2024
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The Amazon River is the largest river in the world. It discharges about one fifth of global freshwater runoff, resulting in a freshwater plume rich in nutrients and trace elements entering the Atlantic Ocean.
Earth Sciences
Jul 31, 2023
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The discovery that zinc is involved in the fertilization process earlier than initially thought was made with the help of the Bionanoprobe, a cutting-edge instrument at Argonne.
Biochemistry
May 17, 2023
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91
Polynesian peoples are renowned for their advanced sailing technology and for reaching the most remote islands on the planet centuries before the Europeans reached the Americas. Through swift eastward migrations that are ...
Archaeology
Apr 21, 2023
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563
No life has yet been found on Mars, but it is exciting to explore the circumstances under which it might be possible. A team led by the Technical University of Berlin (TU Berlin) with the Leibniz Institute of Freshwater Ecology ...
Astrobiology
Dec 14, 2022
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234
A handful of ancient zircon crystals found in South Africa hold the oldest evidence of subduction, a key element of plate tectonics, according to a new study published today in AGU Advances.
Earth Sciences
Apr 21, 2022
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