Enhanced Rock Weathering in Washim

Project Description

We are implementing a nature-based carbon removal strategy in Washim, Maharashtra, centered on Enhanced Rock Weathering (ERW). ERW is a scientifically recognized process that involves applying finely milled basalt to agricultural soils. When exposed to rainfall, the rock undergoes natural chemical weathering reactions, capturing atmospheric CO₂ and converting it into stable bicarbonates and carbonates that are securely stored in soils and groundwater for centuries to millennia.

Beyond permanent carbon sequestration, ERW offers significant co-benefits to agricultural systems. Basalt application improves soil pH, enhances nutrient availability (e.g., calcium, magnesium, potassium, and trace minerals), and increases water retention capacity—factors that collectively support improved soil health and potentially higher crop productivity.

This project integrates climate change mitigation with rural development. Participating smallholder farmers adopt ERW as a regenerative land management practice while gaining access to emerging carbon credit markets, creating opportunities for diversified and climate-resilient income streams.

Through rigorous measurement, reporting, and verification (MRV) aligned with international standards, we aim to demonstrate the scalability and reliability of ERW as a cost-effective, durable, and science-based solution for carbon dioxide removal

Project Type

ERW (Enhanced Rock Weathering)

Region

Washim, Maharashtra, India

 

 

Operation Dronagiri

  • Identify and establish key sourcing locations for suitable rocks/basalts.
  • Conduct geotagging and mapping of basalt sources.
  • Develop a comprehensive sourcing and transportation procedure, leveraging GIS-based feasibility analysis.
  • Conduct laboratory testing of required samples.
  • Establish standard operating procedures (SOPs) for on-field implementation.
  • Generate GIS-based maps identifying optimal test zones.
  • Complete on-ground research to assess farmer segments and site-specific implementation conditions.
  • Establish 1–2 acre test plots (or as determined by laboratory analysis) to evaluate the impact of Enhanced Rock Weathering (ERW) across varying soil and climate conditions
  • Geo-tag and document all field test plots
  • Deploy preliminary Monitoring, Reporting, and Verification (MRV) systems, including soil sampling and GPS tagging
  • Initiate data collection through a prototype mobile application

ERW Process

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Byproduct During Mining

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Processing of Rock

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Loading of Material

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Transportation to Site

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Application on Site

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Carbon Fate in Environment

Geographical Focus

Maharashtra

Impact-5 Sustainability Development Goals

Additional impacts

Improved Water
Retention

Improvement in Soil Nutrients

Reduction in Fertilisers Usage