Scientists document self-propelling oxygen decline in the oceans
Five hundred million years ago, the so-called Cambrian "SPICE" event made oxygen levels in the oceans drop dramatically.
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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When rivers began catching on fire, the U.S. government knew it was time to act. So Congress passed the Clean Water Act of 1972.
Environment
Nov 2, 2023
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Phosphorus is an important nutrient, but too much of it in lakes and streams can diminish water quality and lead to eutrophication, resulting in harmful algal blooms and dead zones. To restore waterways degraded by excess ...
Ecology
Aug 18, 2023
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A new study may have found a missing link that helps explain the Earth's unique oxygen-rich atmosphere—and the evolution of animal life on the planet.
Earth Sciences
Jun 1, 2023
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In a study tracking climate-induced changes in the distribution of animals and their effects on ecosystem functions, North Carolina State University researchers show that resident species can continue managing some important ...
Plants & Animals
May 17, 2023
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Pollination is vital for many plants, and nutrients present in the soil before these plants even sprout may affect how attractive they eventually are to pollinators, according to Penn State-led research.
Ecology
Apr 5, 2023
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While increased carbon dioxide levels in the atmosphere encourage plant growth, they also reduce the nutritional value of plants, which can have a larger impact on nutrition and food safety worldwide. Researchers at Michigan ...
Plants & Animals
Sep 8, 2022
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Reducing levels of the nutrient phosphorus to control harmful algal blooms in places like Lake Erie is actually advantageous to toxic cyanobacteria strains, which can lead to an increase in toxins in the water, according ...
Ecology
May 26, 2022
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The Great Lakes cover nearly 95,000 square miles (250,000 square kilometers) and hold over 20% of Earth's surface fresh water. More than 30 million people in the U.S. and Canada rely on them for drinking water. The lakes ...
Environment
May 19, 2022
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Scientists at the University of Southampton have discovered that two intense periods of volcanism triggered a period of global cooling and falling oxygen levels in the oceans, which caused one of the most severe mass extinctions ...
Earth Sciences
Dec 2, 2021
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