There is enormous potential for poor people in developing countries to switch to liquefied petroleum gas (LPG) and other modern fuels for cooking; exploiting that potential promises to improve the quality of their lives and bring major social, economic and environmental benefits – locally, regionally and globally. Three billion people across the developing world still rely on dirty fuels – traditional biomass (wood, charcoal, agricultural residues and animal waste), coal and kerosene – for cooking on primitive stoves or open fires. They have little or no access to more efficient, modern forms of energy. Unsurprisingly, traditional biomass is most commonly used in rural areas, where access to affordable modern energy is most restricted