Marine Heat Waves Can Exacerbate Heat and Humidity over Land

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By Sarah Derouin, Eos/AGU. 

Excerpt: Researchers found the unprecedented 2023 East Asian marine heat wave increased land temperatures and humidity by up to 50%.... 

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New Lessons from Old Ice: How We Understand Past (and Future) Heating

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By Mariana Mastache-Maldonado , Eos/AGU.  Excerpt: Fragments of blue ice up to 6 million years old—the oldest ever found—offer key insights into Earth’s warming cycles. Researchers are using these ancient data to refine models of our future climate. ...In Antarctica...rare formations known as blue ice areas may offer a distinct look into that deep past. These areas, which make up barely 1% of the continent, form where strong winds strip away surface snow. ...The Allan Hills region, situated on the edge of the East Antarctic Ice Sheet.... Here researchers have discovered ice up to 6 million years old—the oldest yet found. Their  study  of the ice, published in  Proceedings of the National Academy of Sciences of the United States of America , revealed that parts of it formed during periods far warmer than today—times when sea levels were higher and open forests and grasslands covered much of the planet. ...studying the atmospheric remnants trapped in blue ice, the rese...
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E.P.A. Delays Requirements to Cut Methane, a Potent Greenhouse Gas

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A cool, salty solution

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By Science Advisor.  Excerpt: By the 1990s, the world had achieved a striking victory: largely banning chlorofluorocarbons (CFCs), compounds used as refrigerants but destructive to the ozone layer. Unfortunately, their replacements, while safer for ozone, are still potent greenhouse gases; they contribute a few percent to emissions globally. Alternatives to compressible liquid coolants have so far suffered from inefficient heat transfer and the inability to scale. In a typical refrigerator or air conditioner, cooling is achieved by transporting heat away from the system using a fluid that absorbs heat, evaporates into a gas, and gets condensed back into a liquid. Researchers probed a different way to cool down:  adding ions to water to improve its ability to absorb heat  , similar to how we spread salt on the roads to melt snow in the winter. The team ...determined that the cooling process was three times more efficient than conventional systems and could reduce electrici...
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