Traditional three-stone fires in Malawi consume vast amounts of wood, causing deforestation and significant greenhouse gas emissions, while also placing the burden of wood collection predominantly on women.

The wood-burning efficiency of Changu Changu Motos allows women to save approximately 10 hours weekly on firewood collection, reducing wood use by 100 bundles per cookstove annually, equivalent to 2.5 tonnes of carbon emissions.

Besides reducing environmental pollution, improved cookstoves in Malawi lessen health risks associated with traditional fires, such as lung cancer and childhood pneumonia, due to decreased smoke exposure.