Naga Biofuels Turning Used Cooking Oil Into Biodiesel​

Petroleum diesel is widely used in Cambodia, particularly in heavy trucks and vans, but also in many older cars. The diesel sold in Cambodia is a high-sulphur fuel, that is banned from sale in more developed countries. Experts say diesel fuel is a big contribution to air pollution in the country, which is a cause of lung disease and other respiratory diseases. (AP, Siem Reap)