GoKawiilStudy finds agricultural lime acts as a net CO2 sink in Mississippi basin
A new analysis by Suhrhoff et al. published in Nature examined water chemistry across the Mississippi River basin and found that agricultural liming, long classified by the IPCC as a greenhouse-gas source, has actually removed more CO2 from the atmosphere than it released. US farmers apply over 30 million tonnes of lime annually to manage soil pH, and the reaction was previously assumed to emit CO2 directly.