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UNDO focuses on permanently removing carbon from the atmosphere by harnessing naturally occurring processes that do not require additional infrastructure. This allows it to scale quickly and efficiently, with an aim to permanently remove 1 billion tonnes of carbon by 2030. UNDO's first technology is enhanced weathering, the acceleration of natural rock weathering, a geological process which locks away billions of tonnes of CO2 over hundreds of thousands of years. Rock absorbs CO2 when it comes into contact with moisture in soil and from rainfall. UNDO accelerates the natural reaction between basalt and CO2 by working with partners who provide the rock, then spreading it in crushed form on agricultural land, in partnership with regenerative farmers. Because crushed rock is a by-product of an existing industry, there is no need for additional energy to produce it, ensuring a carbon efficiency of 95%. When the rock comes into contact with moisture in the soil and rainfall, mineralization occurs—permanently locking up carbon for over 100,000 years. Additional co-benefits include: 1. Engagement with local communities across the globe and the creation of green jobs in agricultural areas; 2. Increased CO2 absorption and the reduction of nitrous oxide emissions; 3. Slowed ocean acidification and reduced associated impacts on coral reefs and fisheries; 4. Rebalanced soils for healthier plant growth, the reduction of soil nutrient loss and erosion, as well as reduced fertilizer use. All of these co-benefits will in turn help with global food security by improving crop production. The UNDO weathering model predicts the rate at which sequestration occurs based on over 10 external site specific variables. UNDO is working with climate scientists and carbon agencies to write the first methodology for enhanced weathering advanced in-field testing techniques.