Spreading crushed silicate rocks, such as basalt, on agricultural fields (enhanced rock weathering) can remove up to 1.1 to 2 billion tonnes of 𝐢𝑂2 CO2 annually from the atmosphere, providing a significant tool for reaching net-zero emissions. This method accelerates natural weathering, boosts soil nutrients, increases crop yields, and is most effective in countries with large croplands like China, the U.S., and India. Key Aspects of Enhanced Rock Weathering:-

 Spreading crushed silicate rocks, such as basalt, on agricultural fields (enhanced rock weathering) can remove up to 1.1 to 2 billion tonnes of 𝐢𝑂2
  CO2 annually from the atmosphere, providing a significant tool for reaching net-zero emissions. This method accelerates natural weathering, boosts soil nutrients, increases crop yields, and is most effective in countries with large croplands like China, the U.S., and India. 

Key Aspects of Enhanced Rock Weathering:-

Carbon Capture Mechanism: -
Rainwater breaks down the rock dust, turning CO2𝐢𝑂2 into stable bicarbonates that are washed into the ocean, locking away carbon for thousands of years.
Agricultural Benefits: -
The process improves soil health, replaces nutrients lost to farming (calcium, magnesium), and can increase crop yields.
Scaling Potential: -
Studies estimate that applying basalt to global croplands could capture 1–2 billion tonnes of CO2𝐢𝑂2 annually.
Economic Factors:-
 Costs range from $80 to 160 per tonne of160 π‘π‘’π‘Ÿπ‘‘π‘œπ‘›π‘›π‘’π‘œπ‘“ CO_2$, but potential increased yields for farmers could offset expenses.
Implementation: -
The technique is already being deployed, with companies like Lithos Carbon partnering with major firms to capture over 150,000 tonnes of CO2 𝐢𝑂2. 
This technique is considered a high-potential, negative-emissions technology, offering a natural solution to help combat climate change while benefiting farming productivity. 
   Earth Sky Spreading rock dust on fields could remove vast amounts of CO2 from air ,Greenhouse gas emissions .
    The cost depends on local labor rates and varies from $80 per tonne in India to $160 in the US. The study found that the world's biggest polluters, China.

MJF Lion ER YK Sharma 


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