{"id":417597,"date":"2026-04-25T23:09:09","date_gmt":"2026-04-25T23:09:09","guid":{"rendered":"https:\/\/www.newsbeep.com\/ie\/417597\/"},"modified":"2026-04-25T23:09:09","modified_gmt":"2026-04-25T23:09:09","slug":"u-s-waste-holds-5-7-billion-worth-of-crop-nutrients","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/ie\/417597\/","title":{"rendered":"U.S. Waste Holds $5.7 Billion Worth of Crop Nutrients"},"content":{"rendered":"

\"Chemical<\/a>A study suggests that nutrients recovered from animal and human waste could significantly offset U.S. reliance on synthetic fertilizers. Credit: Shutterstock<\/p>\n

Recycling waste nutrients could cut fertilizer use, but coordination and infrastructure are key.<\/p>\n

Nutrients recovered from animal and human waste could sharply cut the need for synthetic fertilizers in the United States, according to a new Cornell University<\/a> study that considers practical challenges such as processing and transportation.<\/p>\n

Published in Nature Sustainability, the study estimates that waste from people and livestock could theoretically supply 102% of the nitrogen and 50% of the phosphorus required for U.S. agriculture. This represents a value exceeding $5.7 billion each year. However, the researchers identified a key obstacle: waste is often generated in areas with dense human or livestock populations, while the greatest fertilizer demand occurs elsewhere.<\/p>\n

By mapping both waste sources and agricultural needs, the team found that a significant share of nutrients can still be used efficiently. About 37% of nitrogen and 46% of phosphorus could be applied locally, while more than half of the remaining surplus could be transported to nearby regions at relatively low economic and environmental cost.<\/p>\n

\"HumanAnimal waste and soil nutrients highlight an overlooked resource for sustainable farming. Credit: Shea Oleksa\/Cornell UniversityCoordination and Environmental Benefits<\/p>\n

\u201cThis is a coordination problem, not a resource problem,\u201d said corresponding author and assistant professor\u00a0Chuan Liao. \u201cEven considering the real-world constraints, there\u2019s still a substantial amount of nutrients that can be economically redistributed to meet crop needs.\u201d<\/p>\n

The findings outline a path to tap into a largely unused resource and reduce reliance on synthetic fertilizers, which require large amounts of energy to produce, harm ecosystems, and are often imported.<\/p>\n

\u201cExcessive use of synthetic fertilizers leads to water pollution, and the production itself generates more emissions\u2014it\u2019s a very intensive process,\u201d Liao said. \u201cAnd you can see with the Iran War, there are supply-chain issues that can lead to great food insecurity as well.\u201d<\/p>\n

Mapping Supply, Demand, and Inequality<\/p>\n

Using publicly available data, the researchers mapped where human and animal waste is produced and where nutrients are needed for 15 major crops, with a spatial resolution of about 10 kilometers (6.2 miles). Surpluses were concentrated in densely populated and livestock-heavy regions such as the Northeast and parts of the West, while shortages were common in the Midwest and southern Great Plains. The team also evaluated how feasible it would be to move nutrients, accounting for processing and transport costs.<\/p>\n

\"NutrientsWaste-derived nutrients could meet all U.S. nitrogen needs and half of phosphorus demand. Credit: Shea Oleksa\/Cornell University<\/p>\n

They found that both extreme surpluses and shortages often occurred in poorer counties, where residents face higher risks of food insecurity and poorer health outcomes. According to Liao, pollution may play a role. In areas with excess nutrients, waste can run off into waterways. In regions with shortages, farmers depend more heavily on synthetic fertilizers, which can damage soil and water quality.<\/p>\n

\u201cThe nutrient inequality seems to mirror social inequality in a large sense,\u201d Liao said. \u201cSo potentially fixing the nutrient flow can promote environmental justice.\u201d<\/p>\n

Local Solutions and System Coordination<\/p>\n

Liao emphasized that expanding waste-based fertilization should start at the local level. For example, a pig farm surrounded by cornfields could supply nutrients directly to nearby crops if the right systems are in place.<\/p>\n

\u201cWe\u2019re advocating for a decentralized system so that waste can be processed locally,\u201d Liao said. \u201cBut in order to do this, we need to coordinate across different sectors such as agriculture, waste, and energy. The technology is there, but we need governance and infrastructure to scale up to the entire U.S.\u201d<\/p>\n

Reference: \u201cRealizing an equitable circular bionutrient economy in the United States\u201d by Shuai Zhou, Danning Lu, Lucinda Li, Krisztina Mosdossy, Rebecca Nelson, Johannes Lehmann and Chuan Liao, 15 April 2026,\u00a0Nature Sustainability.
DOI: 10.1038\/s41893-026-01811-0<\/a><\/p>\n

Funding for the study came from the National Science Foundation and the USDA, with seed funding from the Cornell Atkinson Center for Sustainability.<\/p>\n

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Follow us on Google<\/a> and Google News<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"A study suggests that nutrients recovered from animal and human waste could significantly offset U.S. reliance on synthetic…\n","protected":false},"author":2,"featured_media":417598,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10],"tags":[1153,3810,35499,12774,103,61,60,71761],"class_list":{"0":"post-417597","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-health","8":"tag-sustainability","9":"tag-agriculture","10":"tag-cornell-university","11":"tag-environmental-science","12":"tag-health","13":"tag-ie","14":"tag-ireland","15":"tag-soil"},"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/417597","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/comments?post=417597"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/417597\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media\/417598"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media?parent=417597"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/categories?post=417597"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/tags?post=417597"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}