By PBS NewsHour
By Hari Sreenivasan, PBS NewsHour, Frank Carlson
Filipino divers disappear into water as opaque as chocolate milk as they blindly dig in search of gold trapped in muddy sediment. It's risky business: As miners go deeper, underwater tunnels could collapse or the compressor that provides air may…
By Richard C. Paddock
SANTA MILAGROSA, Philippines -- Brian Mullaton is 13 years old and makes his living by diving into deep, muddy holes.
In remote regions of the Peruvian Amazon, extensive gold-mining operations have stirred major environmental concerns over mercury contamination in fish, fish-eating wildlife and humans. In collaboration with the Pulitzer Center on Crisis Reporting, special correspondent Steve Sapienza reports.
Imagine traveling to a planet where the sun is 11 times stronger than on Earth, the temperature can swing 1,100 degrees and you have to maintain contact with headquarters back on Earth. Science correspondent Miles O'Brien reports on NASA's tricky…
In other news Wednesday, the Tokyo stock market rebounded, and the U.S. Environmental Protection Agency announced new national limits on mercury pollution from coal-fired power plants.
In the second of a two-part series, NewsHour economic correspondent Paul Solman continues his report on the safety of toys sold in the United States, now focusing on the regulatory agencies intended to safeguard consumers.
Worries that the mercury in certain fish could harm young children prompted the government Friday to issue new guidelines for eating fish.
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