Appalachia flattened by as much as 40 percent by mining practices

Only known wild jaguar in the U.S. caught on camera in Arizona

How do you clean up a contaminated river?

Say hello to the 'Virgin Rainbow,' the finest opal ever unearthed

Asteroid-mining company to launch satellite in July

Hints of colonial pollution hidden in Andean ice cap

11 abandoned Old West boom towns

Mysterious Pennsylvania ice mine only produces ice in the summer

EPA: Proposed Pebble Mine could destroy Alaskan salmon fishery

Former salt mine transformed into spectacular underground theme park

Just how big ARE dump trucks used for mining? See for yourself

In Appalachia, even miners want to leave coal behind