Earth
- Earth
Cholesterol boosts diesel toxicity
Nanoparticles in diesel exhaust can activate genes that worsen cholesterol's damaging effects.
- Earth
Hammered Saws
Sawfish, shark relatives that almost went extinct several decades ago, have now gained protection by international treaty.
- Earth
Asian Forecast: Hazy, Warmer—Clouds of pollution heat lower atmosphere
Clouds of smoke and soot that blanket many regions of Asia heat the lower atmosphere by the same amount that rising greenhouse gases do.
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Slick Death: Oil-spill treatment kills coral
Chemicals used to disperse marine oil spills are more harmful to coral than the oil itself.
- Earth
Metal spews from tires and brake pads
A study in Stockholm says that tires and brake pads emit a variety of metal pollutants despite European regulations aimed at cleaning up these parts.
- Earth
Light reaches deep in southeast Pacific
In a remote part of the southeastern Pacific where marine life is sparse, ultraviolet light penetrates to unprecedented depths.
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- Earth
Stunting Growth: Ozone will trim plants’ carbon-storing power
Increasing ground-level ozone due to pollution will stifle the growth of vegetation in many regions, accelerating the buildup of planet-warming carbon dioxide in the atmosphere.
- Earth
Erosion accelerates along Alaskan coast
Alaska's northern coast is falling into the sea at an accelerating rate.
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Birth of an Island: Megaflood severed Europe from Britain
Hundreds of thousands of years ago, the spillover from an immense glacial lake carved a chasm that in a matter of weeks separated what is now Britain from continental Europe.
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E-Waste Hazards: Chinese gear recyclers absorb toxic chemicals
People who live in an area of China where electronic devices are dismantled and recycled, as well as villagers 50 kilometers away, have high concentrations of flame retardants in their blood.
- Earth
As the last ice age waned, a great lake was born
Lake Agassiz, a huge and now vanished freshwater lake, formed almost 14,000 years ago, toward the end of the last ice age.
