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Microplastics promote cloud formation, with likely effects on weather and climate

2024
Miriam Arak Freedman, Heidi L. Busse

Summary

New research demonstrates that microplastic particles can act as cloud condensation nuclei, altering cloud formation processes with potential downstream effects on precipitation patterns and climate. Beyond direct health and ecological toxicity, this finding suggests microplastics may be disrupting Earth's fundamental atmospheric systems, adding a planetary-scale dimension to the urgency of reducing plastic pollution.

Clouds affect Earth’s weather and climate in many ways. New research suggests that the presence of microplastic particles could alter these processes.

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