Methane, which is released from animal manure, is 22 times more damaging than carbon
dioxide. By turning human and animal waste into methane for lighting and cooking, an
IFAD-funded project in China’s Guangxi Province is reducing poverty and also helping
reduce methane’s more damaging global warming effects. “We used to cook with wood,”
says Liu Chun Xian, a farmer involved in the project. “The smoke made my eyes tear and
burn and I always coughed. The children, too, were often sick... Now that we’re cooking
with biogas, things are much better.”
Each household involved in the project built its own plant to channel waste from the
domestic toilet and nearby shelters for animals, usually pigs, into a sealed tank. The waste
ferments and is naturally converted into gas and compost. As a result of the project, living
conditions and the environment have improved. Forests are protected, reducing GHG
emissions from deforestation. A large amount of straw, previously burned, is now put into
biogas tanks to ferment. This further reduces air pollution from smoke and helps produce
high-quality organic fertilizer. In addition, the project has resulted in better sanitary
conditions in the home.
Families, especially women, save 60 work days by not having to collect wood and tend
cooking fires. This additional time is invested in raising pigs and producing crops. With
more time to spend improving crops, farmers in Fada, a village in the project area,
increased tea production from 400 to 2,500 kilograms a day over a five-year period.
Average income in the village has quadrupled to just over a dollar per day. This is
significant in a country where the poverty line is 26 cents per day. And as a result of the
project, 56,600 tons of firewood can be saved in the project area every year, which is
equivalent to the recovery of 7,470 ha of forest