The people of Karangtengah Village in Central Java learned in January one of their key sources of freshwater had been contaminated by debris from the development of a planned $1 billion geothermal energy plant at a nearby volcano. Indonesia, which is estimated to have the largest geothermal capacity in the world, is eager to tap into the renewable energy source. The government says work will continue despite mounting demands from locals to stop the project over claims it has contaminated rivers, cleared forests and damaged the local tourism industry...In February, research by local NGO Lingkar Kajian Banyumas (LKB) showed that the mud and debris resulted from exploration activities for the geothermal plant. PT Sejahtera Alam Energy apologized for the incident, and said they would install filters to clear up the water, after the Banyumas public works department told the firm about the pollution...