As anyone who has stood in a field of cows will tell you, cattle manure can be a particularly unpleasant pollution problem. In many countries across Southeast Asia, it has become a significant environmental challenge because cattle are being reared in ever-larger ‘ numbers close to human habitation. In an effort to improve the situation, this study from Vietnam has looked at several pollution control options available to farmers. It finds that pollution caused by cattle husbandry is having a significant impact on the environment and on people’s quality of life. Encouragingly, it also finds that small-scale biogas digesters offer an appropriate that the Vietnamese Government provides technical and financial support – backed up with education and awareness campaigns to encourage the development of biogas digesters of an appropriate scale and technological sophistication at the family and commune level.
The Cattle Challenge: Controling Backyard Pollution in North Vietnam