Earth
- Earth
Earth’s magnetic mystery forces scientists to get creative
In explaining the Earth’s magnetic field paradox, scientists may discover a new question with an even more interesting answer.
- Oceans
Earth got first whiff of oxygen 3.2 billion years ago
Photosynthesis by early cyanobacteria pumped oxygen into Earth’s oceans 200 million years earlier than once thought, new geochemical analyses show.
- Environment
Molting seals shed mercury along with fur
Seals spew amassed mercury when they shed, creating hotbeds of pollution in otherwise pristine coastal environments.
- Planetary Science
The sad magnetic state of the solar system’s rocky worlds
While a strong magnetic shield protects Earth from the sun’s occasional outbursts, the solar system’s other rocky planets are mostly defenseless.
- Environment
Latest BPA replacement seeps into people’s blood and urine
Replacements for BPA called BPS and BPSIP may raise health risks for cashiers.
- Earth
The magnetic mystery at the center of the Earth
The history of the planet’s all-important magnetic field has scientists ramping up simulations and lab experiments to resolve a baffling paradox.
- Climate
Virtual twister reveals possible source of tornado longevity
First computer simulation of a long-lived EF5 tornado may reveal why some twisters stick around.
- Earth
Volcanic activity convicted in Permian extinction
Precision dating confirms that Siberian volcanic eruptions could have triggered the Permian extinction.
- Climate
Hurricane’s tiny earthquakes could help forecasters
Hurricane Sandy set off small earthquakes under its eye as it moved up the U.S. East Coast in 2012. The tiny tremors could help researchers track the behavior of future storms, researchers propose.
- Climate
Katrina’s legacy: Refining hurricane forecasting
Ten years following Hurricane Katrina’s formation, the storm’s devastating legacy in New Orleans and beyond continues to drive storm forecast improvements.
- Earth
Millions of dollars’ worth of gold and silver found beneath volcanoes
A jackpot of dissolved gold and silver discovered in reservoirs of hot water beneath New Zealand’s Taupo Volcanic Zone.
- Climate
Carbon cuts could save U.S. farmers billions of dollars
Reducing carbon emissions could save U.S. agriculture industry billions of dollars annually by curtailing droughts.
