A new study finds that microplastics mixed with natural organic particles can release carbon during combustion. The released carbon appears the same as carbon from living or once-living material.
Researchers used common analytical tools to measure carbon in water and sediment samples. They compared the carbon yield from microplastic contaminants and from sediment organic matter. The methods are the same ones marine scientists use to track how carbon moves and is stored.
The study warns that microplastics can enter samples from clothing fibers, sampling gear, and storage. The authors say this contamination can quietly change many ocean carbon measurements and affect climate models.
Difficult words
- microplastic — very small pieces of plastic materialmicroplastics
- combustion — the process of burning something
- carbon — a common element in living things
- sediment — small particles on the sea floor
- contamination — the presence of unwanted material or dirt
- analytical — used for careful scientific measurement or study
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Why could microplastic contamination change ocean carbon measurements?
- What steps could scientists take to avoid microplastics in their samples?
- Do you think microplastics can affect climate models? Why or why not?
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