Small dams on Chinese river harm environment more than expected

(Phys.org) —A fresh look at the environmental impacts of dams on an ecologically diverse and partially protected river in China found that small dams can pose a greater threat to ecosystems and natural landscapes than large ...

Post-Sandy, Long Island barrier systems appear surprisingly sound

As coastal communities continue to rebuild in the wake of Hurricane Sandy, scientists at this week's annual meeting of the American Geophysical Union offer some encouraging news: the storm did not seriously damage the offshore ...

Recordings spout secrets behind blue whale behavior

Researchers are using underwater microphones to interpret and characterize the calls of blue whales swimming through Southern California's oceans, revealing new insights into the behavior of these endangered marine mammals, ...

Does New Horizons' next target have a moon?

Scientists were already excited to learn this summer that New Horizons' next flyby target – a Kuiper Belt object a billion miles past Pluto – might be either peanut-shaped or even two objects orbiting one another. Now ...

New views of Mars from sediment mineralogy

The first detailed examination of clay mineralogy in its original setting on Mars is offering new insights on the planet's past habitability, research led by Planetary Science Institute Senior Scientist David T. Vaniman has ...

Researchers find climate change record in clam shells

The tiny, pale surf clam about the size of a fingernail that most people have seen and collected on beaches around the world holds clues in its shell to Earth's past. For the first time, researchers have been able to identify ...

The world's biggest radar laboratory

In the past year, the Department of Energy's Atmospheric Radiation Measurement (ARM) Climate Research Facility deployed 18 new scanning radars at its research sites in Oklahoma, Alaska, and the tropical western Pacific. These ...

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