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Earth
Oceans emit sulfur, cooling the climate more than previously thought
Scientists have successfully quantified methanethiol emissions in the oceans on a global scale for the first time. Credit: Rafel Simó (ICM-CSIC) Researchers have for the first time quantified global emissions of sulfur gas produced by marine life, revealing that sulfur gas is cooling the climate more than previously thought, especially in the Southern Ocean. The study, published in the journal…
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Science
How we discovered that the ocean surface absorbs far more carbon dioxide than previously thought
Credit: Pixabay/CC0 Public Domain The ocean plays a vital role in capturing carbon dioxide (COâ‚‚) from the atmosphere and has so far acted as a brake on the full effects of climate change. Current estimates of COâ‚‚ from the atmosphere lost to the ocean, commonly referred to as ocean COâ‚‚ sinks, suggest that approximately 25% of all human COâ‚‚ emissions…
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Earth
Easter Island’s volcanic history suggests that Earth’s mantle behaves very differently than previously assumed
The structure of the mantle plume beneath Easter Island. Credit: Douwe van Hinsbergen Geography textbooks describe the Earth’s mantle, which lies beneath the plates, as a well-mixed, viscous rock that moves with the plates like a conveyor belt. But this idea was first broached about 100 years ago, and it’s surprisingly difficult to prove. A mysterious discovery on Easter Island,…
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Chemistry
Scientists discover chemical probe for previously ‘untreatable’ cancer target
Structural models predict that the small molecule binding site on FOXA1 is close to DNA. Credit: Scripps Research Cancers caused by hormones, such as breast and prostate cancers, often rely on a difficult-to-target protein called forkhead box protein 1 (FOXA1). FOXA1 mutations may enable these types of cancers to grow and proliferate. Currently, FOXA1 is notoriously difficult to block with…
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Environment
Climate scientists say predictions of catastrophic warming are more plausible than previously thought.
Schematic representation of network-based constraints for evaluating climate sensitivity (netCS) approaches. Credit: Nature Communications (2024). DOI: 10.1038/s41467-024-50813-z What will the future climate look like? Scientists around the world are bringing together Earth system models and large observational datasets to study climate change in hopes of understanding Earth’s climate and predicting the climate for the next 100 years. But which models…
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Environment
Poor countries are recycling far more imported plastic than previously thought, but it’s not enough
Total import volume, trade value, and average unit price of plastic waste paid by the top 22 importers from 2013 to 2022. Credit: Nature Communications (2024). DOI: 10.1038/s41467-024-51923-4 Countries like Malaysia import tons of plastic waste from Europe every year, paying pennies per kilogram. This may seem strange, but Kai Li says it makes sense. “Residents in the Netherlands pay…
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