Ecuador's president declared a state of emergency after a large earthquake shook the country.
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White House Science Fair Celebrates Student Achievements
A suggestion from a 9-year-old science fair participant could lead to a White House committee of kids providing advice about the science that most interests them.
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Into the Belly of a Glacier
Ice caving started as a weekend hobby but has now blossomed into a portion of graduate student Kiya Riverman's Ph.D. research.
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Icy Clouds May Counter Climate Warming Less Than Expected
A new analysis of cloud composition and behavior suggests that scientists have overestimated the ability of a type of mixed-phase ice-and-water cloud to mitigate climate change effects.
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Senate Pushes USGS Director for More Action on Minerals, Hazards
Suzette Kimball also tells senators that innovation is the characteristic she hopes to nurture the most as USGS director.
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Controversial Pacts Aim for Dam Removals on Western U.S. River
New agreements regarding the Klamath River in Oregon and California would enable the largest U.S. dam removal project ever. Critics say water quality will suffer, decry hydropower loss.
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Seven Ways Climate Change Threatens U.S. Population's Health
A report by the U.S. Global Change Research Program finds health risks from global warming tied to heat, air quality, vector-borne diseases, water issues, extreme weather, nutrition, and mental stress.
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Sound Waves Help Scientists Track Volcanic Eruptions
When sound waves hit the ground, they shake seismometers like earthquake waves. Scientists can now use these sound-induced seismic waves to investigate volcanic activity.
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A Warm Day Can Trigger Rockfalls
Research on a cliff face in Yosemite National Park finds that when rockfalls happen without an obvious cause, ordinary warming in the Sun could be the culprit.