Microplastics Threaten Global Food Security by Reducing Photosynthesis

New research finds microplastics impair plant growth, risking food shortages for hundreds of millions by 2040.

A study published in the Proceedings of the National Academy of Sciences reveals that microplastics reduce photosynthesis efficiency in plants by 7% to 12%, impacting both terrestrial and aquatic ecosystems.
Key crops like maize, rice, and wheat are experiencing yield losses between 4% and 14%, with Asia being the most affected region globally.
The reduction in photosynthesis also diminishes aquatic net primary productivity, threatening seafood supplies and marine food webs.
Researchers estimate that microplastic pollution could place an additional 400 million people at risk of starvation within two decades, exacerbating global hunger challenges.
Efforts to mitigate microplastic pollution could significantly reduce these losses, but scientists stress the need for more robust data and international action to address the issue.