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More Heat This Weekend–More Inequities of Keeping Cool

Union of Concerned Scientists

As more high temperatures are forecast in the next few days, two of our climate scientists explain how people of color in four cities--Fresno, CA, Miami, FL, Mobile, AL, and Shreveport, LA--are at risk from the effects of urban heat islands.

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Organic aerosols from forests could help cool the planet

Physics World

Researchers in Finland have observed a plant-induced cooling effect in the atmosphere, which strengthens as temperatures increase. Their results could provide important guidance for climate models that include the influence of aerosols in the atmosphere. Organic aerosols are tiny particles that include dust, ash, and pollen.

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Science denial is still an issue ahead of COP28

Real Climate

In an unchanging climate, the random fluctuations would lead to warming in some parts of the world and cooling in others. In a world with just random local fluctuations but no climate change, about half the weather stations would show a (more or less significant) warming, the other half a cooling. I could go on.

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Think climate change is messy? Wait until geoengineering

Environmental News Bits

Someone’s bound to hack the atmosphere to cool the planet. So we urgently need more research on the consequences, says climate scientist Kate Ricke. Read the full story in Wired. Read more →

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Oscillating temperature gradient boosts heat flow in fluids

Physics World

The discovery by Ladislav Skrbek at Charles University and colleagues could help climate scientists to better understand the flow of heat through Earth’s atmosphere, and may also lead to better designs of heat exchangers. Efficiency booster. They examined different oscillation frequencies in the range 0.006–0.2

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Plastic aerosols in the atmosphere could affect the climate

Physics World

Tiny particles of plastic in the atmosphere can affect Earth’s climate, according to Laura Revell at the University of Canterbury in New Zealand and colleagues. Although the threats these microplastics pose to natural ecosystems are now being studied extensively, their influence on Earth’s climate is still virtually unknown.

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Antarctic extreme events: ‘All-time records are being shattered not from decades ago, but from the last few years and months’

Frontiers

For example, Antarctica acts to cool our planet by reflecting solar radiation back to space by virtue of the brightness of its snow surface. Prof Martin Siegert is an award-winning Antarctic glaciologist and climate scientist. In the ocean, 19 marine heatwaves have been recorded between 2002 and 2018.

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