Earth
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HumansOtters and oil: Problems remain
The behavior of Alaska's southern sea otters may unwittingly expose them to toxic oil-spill residues.
By Janet Raloff -
ChemistryExxon Valdez oil lingers, as does its toxicity
Even 20 years after a major oil spill, barely degraded pockets of the oil persist within some intertidal beaches, research shows.
By Janet Raloff -
AgricultureFighting fungal weapons, not fungi
Scientists have engineered several compounds that target an enzyme that blackleg and black spot fungi use to thwart plant defense systems. The selective compounds are designed not to harm beneficial species while still protecting valuable crops.
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HumansAmerica’s worst oil disaster still isn’t over
Impacts of the Exxon Valdez oil spill linger.
By Janet Raloff -
EarthVitamin E shields lungs from smog effects
The "other" vitamin E shows promise in being able to shield the lungs and nasal passages from ozone damage.
By Janet Raloff -
EarthNorth America’s smallest dino predator
A new fossil analysis uncovers what may have been North America’s tiniest dino predator.
By Sid Perkins -
EarthPushing back an oxygen-rich atmosphere
Hematite crystals in Australian rocks hint that Earth’s atmosphere was oxygenated earlier than previously thought.
By Sid Perkins -
EarthGoo gives eels just the right buoyancy
Scientists survey the specific gravity of 25 marine critters.
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Planetary ScienceSeeing the future hot spells
Satellite data could help scientists better predict killer heat waves, such as the one that hit Europe in 2003.
By Sid Perkins -
Health & MedicineBottled water may contain ‘hormones’: Glass
Some mineral water appears to have been tainted prior to bottling.
By Janet Raloff -
ChemistryBottled water may contain ‘hormones’: Plastics
New concerns arise over the presence of hormonelike pollutants in plastic food packaging.
By Janet Raloff