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Earth|May 24, 2026|2 min read

Impact of Microplastics on Ocean Carbon Uptake

New research reveals how microplastics interfere with the ocean's ability to absorb and sequester carbon dioxide, potentially affecting critical climate processes.

#microplastics#ocean-carbon#carbon-sequestration#climate-change#marine-pollution#phytoplankton#plastic-pollution#biological-carbon-pump#climate-science
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Phys.org

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A recent study has explored the effects of microplastics on the ocean's ability to absorb and store carbon. The research indicates that microplastics can hinder marine organisms' capacity to process carbon dioxide, thereby impacting the biological carbon pump—a crucial mechanism in regulating Earth's climate.

The results reveal that microplastics disrupt the normal functioning of phytoplankton and other marine microorganisms, which play an essential role in carbon sequestration. As these organisms are negatively affected by plastic pollution, the ocean's effectiveness in removing atmospheric CO2 diminishes, potentially exacerbating climate change.

Experts caution that this area of ocean pollution and its consequences for climate dynamics remains significantly understudied. The research underscores the interconnected nature of environmental issues, illustrating how plastic pollution transcends visible contamination to influence fundamental biogeochemical cycles that are vital for sustaining the planet.

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