Scientists discover new reef system at mouth of Amazon River

A new reef system has been found at the mouth of the Amazon River, the largest river by discharge of water in the world. As large rivers empty into the world's oceans in areas known as plumes, they typically create gaps in ...

Predicting the extent of flash flooding

Devastating floodwaters such as those experienced during Iowa's Flood of 2008—which swamped many Iowa communities, along with ten square miles of Cedar Rapids—are notoriously difficult to predict.

Scientists find new arsenic threat in deep water wells

"Dig deep" to avoid naturally occurring arsenic contamination has been promoted as an answer to obtaining safe water in South Asia, which has experienced mass poisoning. But arsenic has been found in numerous deep wells drilled ...

Study says salmon may use magnetic field as navigational aid

The mystery of how salmon navigate across thousands of miles of open ocean to locate their river of origin before journeying upstream to spawn has intrigued biologists for decades, and now a new study may offer a clue to ...

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