The Sun and Stars Affect Our Everyday Clouds and, Ultimately, Earth’s Energy Budget

Cosmic ray showers in the atmosphere may be important for cloud formation. Credit: DTU Space

Large Effect of Solar Activity on Earth’s Energy Budget
This is the result of a new study by researchers from DTU Space at the Technical University of Denmark (DTU) and of The Hebrew University of Jerusalem, who have traced the consequences of eruptions on the Sun on clouds and Earth’s energy balance. 
“We tested cosmic ray effects on the atmosphere for about two weeks. When solar explosions reduce the cosmic ray flux reaching Earth, they temporarily reduce the production of small aerosols. The …
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