Phys.org  April 11. 2024 Soil inorganic carbon (SIC) remain largely unquantified. A team researchers from many countries found that nearly one billion tons of inorganic carbon are lost to inland waters annually, and that future losses will reduce global SIC by 23 billion tons over the next 30 years under the current scenario. By compiling 223,593 field-based measurements and developing machine-learning models, they reported that global soils store 2305 ± 636 (±1 SD) billion tonnes of carbon as SIC over the top 2-meter depth. Under future scenarios, soil acidification associated with nitrogen additions to terrestrial ecosystems would reduce global SIC […]