https://www.cnn.com/2023/10/30/americas/asteroid-dust-dinosaur-extinction-photosynthesis-scn/index.html
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Asteroid that doomed the dinosaurs halted a key process for life on Earth, scientists say - CNN
11/1/23 at 3:29am
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CNN
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Katie Hunt
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Fine dust thrown up into Earth’s atmosphere after an asteroid strike 66 million years ago blocked the sun to an extent that plants were unable to photosynthesize, a new study has found.
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