critical issues
What is the potential for geothermal energy production in the United States?
How much electricity does a typical nuclear power plant generate?
How many nuclear power plants are there in the U.S.?
How much U.S. electricity is generated from renewable energy?
How much of world energy consumption and electricity generation is from renewable energy?
What is frac sand?
How much copper has been found in the world?
What can be done to prevent or clean up acid mine drainage?
How many pounds of minerals are needed for each person in the U.S. per year?
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