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🇰🇷 South Korea /Environment & Climate

Microplastics May Accelerate Global Warming, Study Finds

From Hankyoreh · (5m ago) Korean Critical tone

Translated from Korean, summarized and contextualized by DistantNews.

TLDR

  • A new study suggests that colored microplastics, particularly black and dark particles, absorb more sunlight than white ones, potentially accelerating global warming.
  • Researchers found that microplastics' warming effect could be as high as 16.2% of that of black carbon, a known warming agent.
  • The study highlights the need for further research into the global distribution of microplastics and their impact on atmospheric processes and climate change.

A groundbreaking international study involving researchers from China's Fudan University and Duke University in the US has revealed a concerning link between microplastics and global warming. Published in the prestigious journal 'Nature Climate Change,' the research indicates that colored microplastics, especially black and dark particles, absorb sunlight more intensely than their white counterparts. This heightened absorption, the study suggests, could contribute to accelerating global warming.

The study result showed that colored microplastics absorb sunlight more strongly than white particles.

— International Research TeamDescribing the core finding of the study on microplastic's impact on warming.

The findings are particularly alarming given the prevalence of microplastics in our oceans and soil. The research team utilized high-resolution electron spectroscopy to analyze the optical properties of plastic particles, combining this with atmospheric simulation models to calculate their warming effect. The results estimate that microplastics could contribute up to 16.2% of the warming effect attributed to black carbon, a potent warming agent released from burning fossil fuels and wood.

The warming effect of microplastics and nanoplastics is estimated to be as high as 16.2% of that of black carbon.

— International Research TeamQuantifying the potential contribution of microplastics to global warming.

Furthermore, the study warns that in areas with high plastic concentrations, such as the Great Pacific Garbage Patch, the warming effect of microplastics could be up to 4.7 times stronger than that of black carbon. While the researchers acknowledge that the study simplified atmospheric processes and that global distribution needs more precise observation, they emphasize that atmospheric plastic particles demonstrably contribute to warming.

In areas with high plastic concentrations, such as the Great Pacific Garbage Patch, the microplastic warming effect can be up to 4.7 times stronger than black carbon.

— International Research TeamHighlighting the amplified warming effect in specific high-pollution zones.

Dr. Park Beom-soon, director of the Center for the Anthropocene at KAIST, commented that this paper moves beyond the physical mechanisms of plastic degradation to establish a connection between climate and plastics. He noted that as microplastic concentrations are expected to rise, the pace of climate change may also accelerate. This research underscores the urgent need to address plastic pollution not just as an environmental hazard but as a significant factor in the climate crisis.

This study reveals that climate and plastics are connected, going beyond the physical mechanisms of plastic degradation.

— Park Beom-soonCommenting on the significance of the research linking plastic pollution to climate.
DistantNews Editorial

Originally published by Hankyoreh in Korean. Translated, summarized, and contextualized by our editorial team with added local perspective. Read our editorial standards.

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