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| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Proceedings of the National Academy of Sciences of the United States of America
2025
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| Subjects: | |
| Online Access: | https://pubmed.ncbi.nlm.nih.gov/40063820/ |
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Table of Contents:
- A global estimate of multiecosystem photosynthesis losses under microplastic pollution. Zhu, Ruijie Zhang, Zhaoying Zhang, Naichi Zhong, Huan Zhou, Fanqi Zhang, Xiao Liu, Cun Huang, Yingnan Yuan, Yuan Wang, Yujun Li, Chengjun Shi, Huahong Rillig, Matthias C Dang, Fei Ren, Hongqiang Zhang, Yongguang Xing, Baoshan Photosynthesis Microplastics Ecosystem Water Pollutants, Chemical Crops, Agricultural Understanding how ecosystems respond to ubiquitous microplastic (MP) pollution is crucial for ensuring global food security. Here, we conduct a multiecosystem meta-analysis of 3,286 data points and reveal that MP exposure leads to a global reduction in photosynthesis of 7.05 to 12.12% in terrestrial plants, marine algae, and freshwater algae. These reductions align with those estimated by a constructed machine learning model using current MP pollution levels, showing that MP exposure reduces the chlorophyll content of photoautotrophs by 10.96 to 12.84%. Model estimates based on the identified MP-photosynthesis nexus indicate annual global losses of 4.11 to 13.52% (109.73 to 360.87 MT·y) for main crops and 0.31 to 7.24% (147.52 to 3415.11 MT C·y) for global aquatic net primary productivity induced by MPs. Under scenarios of efficient plastic mitigation, e.g., a ~13% global reduction in environmental MP levels, the MP-induced photosynthesis losses are estimated to decrease by ~30%, avoiding a global loss of 22.15 to 115.73 MT·y in main crop production and 0.32 to 7.39 MT·y in seafood production. These findings underscore the urgency of integrating plastic mitigation into global hunger and sustainability initiatives.