Our soils store a lot of Carbon, far more than what is there in the atmosphere. Since industrialization and large spread farming we have moved a lot of this carbon from the soil into the atmosphere.
By increasing the Soil Organic Content (SOC) we are moving the C from the atmosphere back into the soil.
https://www.nature.com/scitable/knowledge/library/soil-carbon-storage-84223790/
Total C in terrestrial ecosystems (3160 GT) = Soil Carbon 80% (2500 GT) + Plant & Animal (560 GT)
Soil Carbon = Organic (1550 GT) + inorganic carbon (950 GT)
Atmospheric Carbon = 800 GT
Ocean carbon = 38,400 GT (mostly Inorganic)
Total Carbon in Terrestrial Ecosystems
CO2 Emissions Due to Energy and Industry 2021 : 36.3 GT ⇒ 11 GT ( CO2 * 14/46 ⇒ C)
CO2 Emissions from Transport Industry : 7.2 GT
[CO2 Emission for Each Car per year](https://www.epa.gov/greenvehicles/greenhouse-gas-emissions-typical-passenger-vehicle#:~:text=typical passenger vehicle%3F-,A typical passenger vehicle emits about 4.6 metric tons of,around 11%2C500 miles per year.) = 4.6 T of CO2 ⇒ 1.4 T of C
CO2 Emission for Each Indian Household per year = 0.56 T of CO2 ⇒ 0.17 T of C
SOC per acre (T/acre) = (soil organic carbon %) x (mass of soil in a given volume)
Soil with a SOC of 1.0% (0.01) and a bulk density of 1.2 g per cubic cm, would have SOC to a depth of 30 cm (0.3 m) per acre (4000 m2) of: (0.01) x (1.2 x 0.3 x 4000) = 14.4 T/acre.
Every Acre of Soil with 1% SOC = 14.4 T of Carbon (Approximately)
For 250 Ac 1% of SOC increase ⇒ 3600 T of Carbon
By increasing SOC by 0.5% for 1 Acre ⇒ 7.2 tons of Carbon Sequestered into the soil ⇒ 42 Houses