The cell-phone-based Carbon Micro Credit system employs SMS (simple message service) and unique identifiers to allow millions of families in the Developing World to claim on a bi-weekly or monthly basis the carbon offsets they produce by using more efficient cooking methods such as a modern charcoal stove or solar cooker, instead of an inefficient open-pit fire burning biomass. As a result, each family is able to monetize directly its own contribution to mitigating global warming, while also reducing nationwide rates of deforestation and desertification.