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Wednesday, May 29, 2024

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Trump case expected to head to the jury today; IN food banks concerned about draft Farm Bill; NH parents, educators urge veto of anti-LGBTQ+ bills; Study shows a precipitous drop in migratory fish populations, in US and worldwide.

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Actor Robert DeNiro joins Capitol Police officers to protest against Donald Trump at his New York hush money trial as both sides make closing arguments. And the Democratic Party moves to make sure President Biden will be on the ballot in Ohio.

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Smokey Bear thought only "you" could prevent forest fires, but decomposing mushrooms may also help, a Native American community in Oregon is achieving healthcare sovereignty, and Colorado farmers hope fast-maturing, drought-tolerant seeds will better handle climate change.

Dwindling Great Lakes ice cover highlights troubling trend

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Monday, February 19, 2024   

The Great Lakes region has experienced record low ice cover this winter, and scientists said it is important to keep an eye on the warming trends.

Ice cover on the Great Lakes is currently at just 2.9% of the surface area, compared with the historical average of 38% for this time of year.

Ayumi Fujisaki-Manome, associate research scientist at the University of Michigan, said the main reasons for less ice are the current El Nino weather pattern and the warm phase of the North Atlantic Oscillation, both of which are preventing cold air from reaching the Great Lakes region.

She acknowledged winter recreation is certainly affected but emphasized there is a greater effect.

"People have to be more careful with such hazardous conditions," Fujisaki-Manome pointed out. "Even if we are getting warmer and having less ice, we're still subject to dangerous weather conditions such as lake-effect snowstorm or freezing rain, which is more dangerous."

Fujisaki-Manome noted year-to-year variations are occurring on top of the longer-term warming trend and can lead to extreme weather patterns.

Melissa Widhalm, associate director of the Midwestern Regional Climate Center at Purdue University, said all the changes are tied to an overall warming climate and warmer water temperatures. She stressed the importance of considering the long-term implications.

"There's some positives. If you have less ice, maybe that's great for shipping, but there are certainly some negatives," Widhalm contended. "You have winners and losers. It can be really damaging to fish species that lay their eggs and expect that ice to be there to protect their eggs during those winter storms."

In Detroit, an already dwindling season of black lake sturgeon fishing was canceled altogether because of safety concerns over low ice cover.


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