An aerial view of a tailings dam storing waste from a copper-mining operation ... and calculated the extent of pollution from them. Chemicals can leach from mining operations into soil and waterways.

China has announced a significant discovery of a copper deposit of over 20 million metric tons in the Qinghai-Xizang plateau, ...

They found that pollution levels around the copper mining sites of the Timna Valley were extremely low—and concentrated only where there were once ancient smelting furnaces. "For instance ...

We found that pollution levels at the Timna copper mining sites are extremely low and confined to the locations of the ancient smelting furnaces. "For instance, the concentration of lead—the ...

We found that pollution levels at the Timna copper mining sites are extremely low and confined to the locations of the ancient smelting furnaces. For instance, the concentration of lead — the ...

In announcing the study this week, TAU said more diplomatically that the new research overturned “prevailing scientific beliefs” that copper mining in antiquity created significant pollution ...

The SAP, the Environmental Protection Agency, the U.S. Fish and Wildlife Service, the United Nations Environment Programme, ...

SUPERIOR, Ariz.— Conservation groups filed a formal notice of intent to sue the U.S. Environmental Protection Agency today in response to the Arizona Department of Environmental Quality’s decades-long ...