| http://www.w3.org/ns/prov#value | - While geothermal projects present environmental issues ??? pumping up that super-hot brine can bring arsenic, mercury, and nickel or other toxic materials to the surface ??? Horne said there are companies exploring the possibility of mining the brine for key minerals, a concept that failed in the past when mineral prices collapsed but may now be economically viable because those prices have risen.
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