Earth
- Climate
Gulf Stream might be releasing seafloor methane
Greenhouse gas may be flowing into ocean waters off the U.S. east coast.
By Tanya Lewis - Earth
Spanish quake linked to groundwater pumping
Draining aquifers likely triggered 2011 tremor that killed nine people.
- Earth
Years after big quake, Turkish fault still slip-sliding
Creeping movement underscores the seismic danger threatening Istanbul.
- Environment
Elevated carbon dioxide may impair reasoning
Insufficient ventilation allows exhaled gas to build up indoors, diminishing decision-making abilities.
By Janet Raloff - Chemistry
Depths hold clues to dearth of xenon in air
The gas doesn’t dissolve well in minerals deep inside Earth, a discovery that may explain why it’s also scarce in the atmosphere.
- Earth
Fish in mom’s diet may alter kids’ behavior
Eating fish that's low in mercury during pregnancy may reduce the risk that a woman's child shows signs of attention-deficit/hyperactivity disorder.
By Janet Raloff - Life
Duck-billed dino could slice and dice
Ancient animal’s teeth were made of six different tissue types.
By Erin Wayman -
- Earth
Intraplate quakes signal tectonic breakup
The unusual April temblors are the latest in a massive energy release that is cleaving the Indo-Australian crustal plate in two.
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- Earth
Earth & Environment
Soot’s contributions to global warming may be overestimated, and unusual source of oceans’ methane discovered.
By Science News - Earth
Arctic sea ice hits record low, and keeps going
A summer storm and thinner ice probably contributed to this year’s massive melt.