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A new energy plant in the United States turned cow dung into a treasure trove, converting it to a biogas similar to natural gas and generating electricity. A lump of cow dung can produce 100 watts. Californian dairy farm is used to convert cattle manure into renewable gas venues China Daily Net global online March 10 hearing, with rising oil prices and the world's awareness of environmental protection to improve, looking for both environmentally friendly and economical alternative energy It has become the main issue of some countries. Recently, a new type of energy plant in Texas, USA, turned cow dung into a treasure trove, converting them into a biogas similar to natural gas for power generation. According to British media reported on March 6, located in central California, a company called Dairy Farm, announced recently that they found a way to solve the local residents of electricity a new way, that is, the use of cow dung to generate electricity. David Albers, the manager of the dairy farm, said: "Most people do not find anything from cow dung, but we see opportunities for farmers and the whole California." Excrement and other animal excrements in the nature of thermal decomposition will produce methane, which is a greater impact than carbon dioxide greenhouse gas. Some scientists say controlling methane emitted from animal excrements has become an important step in fighting climate change. However, methane can also be converted into renewable gas, which can be used to generate electricity instead of coal. Data show that a cow's faeces can generate about 100 watts of electricity. The engineering that Albers invented to make renewable gas was massive. The workers first dumped the cow manure into a large octagonal pit and pumped it into a covered In the ponds, the pond area has a size of five football fields and a depth of 33 feet, which is equivalent to about 10 meters. After filtering through the barrier, the solid residue can eventually be used as a straw mat and the renewable gas is piped to the power plant in northern California via the PG & E pipeline. California regulators, which insists on promoting clean and renewable energies, have already instructed power plants in the state to require renewables to provide 20% of their electricity by 2010, up from the 2020 level 33%, Pacific Gas and Power hopes to bring this new technology to the end of this year, renewable gas can provide 14% of the power generation. The vice chairman of the California Energy Commission said that all dairy farmers in the state can follow the example of this approach, by which they can both increase their incomes and help protect the environment. It is reported that cattle, sheep and other ruminants are methane, carbon dioxide and other aggravating air pollution and global greenhouse effect of important release material. At present, there are 1.05 billion cattle and 1.3 billion sheep in the world. Cattle and sheep emit about one-fifth of the methane emissions in the world through farting, excrement and urine. Among them, cattle produce the largest amount of methane gas, which is two to three times that of other ruminants. In order to protect the Earth's environment, the scientific community and governments are now actively seeking ways to minimize methane emissions from animals such as cattle and sheep.