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Search results for ocean acidification

Plants & Animals Jan 23, 2025

More acidic oceans may affect the sex of oysters

Rising carbon dioxide levels affect more than just the climate; they also affect the chemistry of the oceans. When saltwater absorbs carbon dioxide, it becomes acidic, which alters the aquatic animal ecosystem.

Environment Dec 17, 2024

Antarctica's tipping points threaten global climate stability

Antarctica is approaching a series of cascading tipping points that could reshape ecosystems and intensify global climate disruptions, according to a new study by an international team of scientists, including researchers ...

Ecology Dec 11, 2024

Vanishing sea ice threatens polar food chain

Rapid sea ice loss and ocean acidification from climate change are altering the growth and nutritional value of microscopic algae. These algae are an essential food source for fish, krill, and other small organisms that sustain ...

Ecology Dec 6, 2024

Plankton study investigates how marine food webs respond to increasing alkalinity

The ocean naturally absorbs a quarter to a third of man-made CO2 emissions, but this process also leads to the acidification of seawater. By increasing the alkalinity of seawater through the addition of certain minerals (e.g., ...

Earth Sciences Dec 4, 2024

Ocean density identified as a key driver of carbon capture by marine plankton

New findings, published in Royal Society Open Science, have revealed that changes in ocean density have a significant impact on the rate at which marine plankton incorporate carbon into their shells. This has profound implications ...

Earth Sciences Dec 1, 2024

3D ocean model shows ocean acidification moving deeper as atmospheric emissions increase

A pair of environmental physicists at the Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, has built a 3D model of the world's oceans and their currents to learn more about the depths that ocean acidification ...

Environment Nov 26, 2024

Scientists enhance Seaglider technology to measure carbon dioxide

Scientists around the world rely on ocean monitoring tools to measure the effects of climate change. Researchers at the University of Alaska Fairbanks and their industry partners have advanced the technology available to ...

Earth Sciences Nov 25, 2024

New model can predict marine heat waves, extreme ocean acidity months in advance

In the 21st century, the Earth's oceans are growing warmer and more acidic. This change is happening slowly over the long-term, but it can also cause short-term, local spikes.

Plants & Animals Nov 21, 2024

Plastic reduces krill's ability to remove carbon in the deep ocean, marine ecologists find

New research shows that increased levels of plastic pollution in the Southern Ocean could reduce the ability of Antarctic krill, a tiny shrimp-like crustacean, to help take CO2 from the atmosphere. The results are published ...

Earth Sciences Nov 20, 2024

Oceanographic expedition provides evidence on the 'atlantification' of the Arctic Ocean

The international BIOCAL expedition, led by the Institute of Environmental Science and Technology of the Universitat Autònoma de Barcelona (ICTA-UAB), provided new evidence on the phenomenon of "atlantification" of the Arctic ...

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