Story perspectives

Microplastics Boost Atmospheric Warming, Study Shows

5/13/2026

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Summary

Story summary

Drew Shindell’s team published a Nature Climate Change study on May 4 showing atmospheric microplastics add to warming.
Lab tests find darker microplastics absorb sunlight, creating net warming.
Warming from micro- and nanoplastic particles is about five times their cooling effect, adding only a few hundredths of a degree and roughly two percent of CO2’s contribution.
Atmospheric plastic loads and distribution remain poorly measured, with most observations collected near the ground.

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Story summary

Drew Shindell’s team published a Nature Climate Change study on May 4 showing atmospheric microplastics add to warming.
Lab tests find darker microplastics absorb sunlight, creating net warming.
Warming from micro- and nanoplastic particles is about five times their cooling effect, adding only a few hundredths of a degree and roughly two percent of CO2’s contribution.
Atmospheric plastic loads and distribution remain poorly measured, with most observations collected near the ground.