Marine life in the water column depends on the right combination of water temperature, acidity, and oxygen levels, so creatures such as fish and plankton can be hard hit by large regional fluctuations in any of these parameters. ...
Environment
Jul 1, 2024
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1
About 183 million years ago, volcanic activity in modern South Africa unleashed an estimated 20,500 gigatons of carbon dioxide (CO2) into the ocean–atmosphere system over a period of 300 to 500 thousand years. Known as ...
Earth Sciences
Jun 25, 2024
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157
Five hundred million years ago, the so-called Cambrian "SPICE" event made oxygen levels in the oceans drop dramatically.
Earth Sciences
Jun 21, 2024
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14
About 2.5 billion years ago, free oxygen, or O2, first started to accumulate to meaningful levels in Earth's atmosphere, setting the stage for the rise of complex life on our evolving planet.
Earth Sciences
Jun 12, 2024
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189
Researchers at Georgia Institute of Technology have finished investigating how the prehistoric weakening of a major ocean current led to a decline in ocean nutrients and negative impacts on North Atlantic ocean life. The ...
Earth Sciences
May 11, 2024
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83
Earth's atmosphere maintains a constant level of oxygen, whether it is a wintry, rainy day or hot summer. Across the ocean, oxygen concentrations vary enormously between different places and over time. Sometimes oxygen levels ...
Environment
Apr 23, 2024
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9
Dr. Uri Ryb and Dr. Michal Ben-Israel from the Institute of Earth Sciences at the Hebrew University, along with their collaborators, have made an important discovery in Earth sciences. Their study, published in Nature Communications, ...
Earth Sciences
Apr 4, 2024
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18
Tropical cyclones, also known as hurricanes and typhoons, are meteorological phenomena that occur over tropical and subtropical oceans experiencing low atmospheric pressure, where water vapor from the warm oceans condenses ...
As more and more nutrients from land and air enter the world's oceans, the dead zones without oxygen in the water will increase in size and intensity. That is the warning that Ph.D. student Zoë van Kemenade, an organic geochemist ...
Earth Sciences
Mar 25, 2024
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1
Jupiter's icy moon Europa has long been thought of as one of the most habitable worlds in the Solar System. Now the Juno mission to Jupiter has directly sampled its atmosphere in detail for the first time. The results, published ...
Planetary Sciences
Mar 9, 2024
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