| http://www.w3.org/ns/prov#value | - The extracted methane gas also no longer threatens to contaminate the water system.Nevertheless, Greenpeace and some other environmental groups oppose such projects, saying that their ???green??? credentials are often exaggerated and that they create a financial incentive for more trash to be dumped.???The only way to address the issue of methane generation from waste is to stop the rubbish going
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