I do not think researches do not understand sediments would deposit somewhere. That's obvious. There should be something else. Turbine gets water not from the

I do not think researches do not understand sediments would deposit somewhere. That's obvious. There should be something else. Turbine gets water not from the surface. There was a project to extract enough methane to increase energy production. http://news.bbc.co.uk/2/hi/6638705.stm http://news.bbc.co.uk/2/hi/6638705.stm