| http://www.w3.org/ns/prov#value | - Although that percentage is lower than in some other parts of the world ??? in Latin America, 80 percent of sewage is untreated ??? the problem is particularly acute in the Mediterranean, whose closed geography means that it takes 100 years to renew its waters.LINK from 2008Of course it takes energy to run a treatment plant, also planning, management, technical skill, maintenance, expansion horizo
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