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Agricultural liming in the US is a large CO2 sink, say researchers
https://www.eurekalert.org/news-releases/1090391News Release 9-Jul-2025
Agricultural liming in the US is a large CO₂ sink, say researchers
Research presented at the Goldschmidt Conference in Prague
Reports and Proceedings
European Association of Geochemistry
Adding lime to agricultural soils can remove CO₂ from the atmosphere, rather than cause CO₂ emissions, claims new research.
The findings, based on over 100 years of data from the Mississippi River basin and detailed computer modelling, run counter to international guidelines on reducing agricultural emissions.
The research is presented today [Thursday 10 July] at the Goldschmidt Conference in Prague.
The team, from the Yale Centre for Natural Carbon Capture at Yale University, show that the addition of acidity, in the form of atmospheric pollution and fertilisers, is the main driver for CO₂ emissions from soils. By calculating emissions based on acid inputs, they show how emissions may be being underestimated in some cases and the potential for lime to reduce emissions is being overlooked.
…
https://conf.goldschmidt.info/goldschmidt/2025/meetingapp.cgi/Paper/29785Agricultural liming in the US is a large CO₂ sink, say researchers
Research presented at the Goldschmidt Conference in Prague
Reports and Proceedings
European Association of Geochemistry
Adding lime to agricultural soils can remove CO₂ from the atmosphere, rather than cause CO₂ emissions, claims new research.
The findings, based on over 100 years of data from the Mississippi River basin and detailed computer modelling, run counter to international guidelines on reducing agricultural emissions.
The research is presented today [Thursday 10 July] at the Goldschmidt Conference in Prague.
The team, from the Yale Centre for Natural Carbon Capture at Yale University, show that the addition of acidity, in the form of atmospheric pollution and fertilisers, is the main driver for CO₂ emissions from soils. By calculating emissions based on acid inputs, they show how emissions may be being underestimated in some cases and the potential for lime to reduce emissions is being overlooked.
…
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