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Aug 27, 2015 03:54 PM ET
One spectacular toxic mine waste leak in Colorado is just the tip of the proverbial iceberg. Continue reading →
Aug 25, 2015 04:45 PM ET
Shipwrecks are terrifying catastrophes, but the underwater wreckage they leave behind has odd beauty.
Aug 25, 2015 06:00 PM ET
Pollution is getting into one of America's great natural wonders. Continue reading →
Aug 20, 2015 11:50 AM ET
Government limits are far too low on a chemical used in making non-stick cookware, a new study suggests. Continue reading →
Aug 20, 2015 08:49 AM ET
While the radioactivity is low, the element's chemical properties pose a health risk.
Aug 18, 2015 05:48 PM ET
The sun triggers the release of smog-forming nitrogen oxide compounds from urban grime. Continue reading →
Aug 17, 2015 08:00 AM ET
Nations are trying to stake claims to mineral and energy wealth at the top of the world. Continue reading →
Aug 13, 2015 12:03 PM ET
The Guadalupe, which runs through San Jose, is the latest casualty of the state's water woes Continue reading →
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