Scientists track major freshwater change

'What we are witnessing is major hydrologic change,' they said. Over 14 years, Earth's wet land areas got wetter. Dry areas got drier. They also reported multiple hot spots resulting from groundwater depletion.

Top tips for poison ivy

Summer is a great time to frolic in the woods, but look out for poison ivy, oak, and sumac! Top tips for summer itch-prevention.

Situation at Kilauea Volcano ‘steadily worsening’

A large explosion happened on May 18 at Hawaii's Kilauea Volcano, and, at that time, the 1st serious injury was reported. USGS warned of the release of toxic gases in a plume called a laze, which happens when molten lava hits sea water. Images and videos here.

Scientists measure rise in ozone-destroying chemical

Report on CFC-11 - an illegal chemical responsible for ozone-depletion in Earth's atmosphere - now apparently on an upswing again. Meanwhile, new direct evidence the ban on CFCs is working and the ozone hole is recovering.

Shelf cloud over New York

A squall line of severe thunderstorms swept over New York City and the surrounding area last Tuesday, creating dramatic skies.

Scientists discover a new type of magnetic event

They were working with spacecraft data, using a new technique to analyze it. They found a new type of magnetic event in the realm just beyond the boundary of Earth's magnetic field.

The Female Bird Song Project

There's a false notion that female birdsong is rare in comparison to male birdsong. But lady birds sing, too. You can participate in a new project that aims to collect more recordings of female birds.

North Pole gets a heat wave

Unseasonably, in recent days, the temperature at the North Pole has soared to the melting point of ice. That's about 30-35 degrees F (17-19 C) above normal.

Will Hawaii’s Kilauea Volcano explode?

Volcano scientists issued a second Orange Alert on Wednesday. "At this time, we cannot say with certainty that explosive activity will occur, how large the explosions could be, or how long such explosive activity could continue."

Here’s why volcanoes are so dangerous

When mountains explode … lava flows and fountains … getting ready for the next eruption.

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