States are coming up with innovative ways to allow fracking while still protecting their communities.
In the stream below a plant that treats wastewater from fracking, scientists found large amounts of metals and salts, and elevated levels of radioactivity.
Can revised rules on drilling be revised again to better protect the environment and public health?
Ongoing health problems in Mayflower, Ark., suggest the oil spill cleanup was not complete.
An oil spill in Alberta, kept under wraps for months, is raising questions about oversight of tar-sands oil drilling.
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