Earth
- Earth
Impurities clock crystal growth rates
A novel method for measuring tiny amounts of hydrogen-containing impurities allows researchers to determine growth rates along different directions in a quartz crystal.
- Earth
A deadly threat in undeployed airbags
The extremely toxic and reactive chemical used to inflate airbags could cause risks to human health and wildlife if accidentally released into the environment.
- Earth
It’s high tide for ice age climate change
Tides may sometimes be strong enough to tug Earth into an ice age.
- Earth
Moderate flows help carve rivers
Measurements of erosion in a rocky river channel in Taiwan suggest that the day-to-day flow of water accounts for more rock wear there than occasional catastrophic floods do.
- Earth
Gasoline additive’s going, but far from gone
As the federal government proposes phasing out the gasoline additive MTBE, scientists explore ways to remove this potential carcinogen from drinking-water supplies that it has tainted throughout the nation.
- Earth
Titanic iceberg sets sail from Antarctica
An iceberg about the size of Connecticut recently split off from the Ross Ice Shelf in Antarctica.
- Earth
More Waters Test Positive for Drugs
Traces of drugs, excreted by people and livestock, pollute surface and ground waters in the United States, as had already been confirmed in Europe.
- Earth
Much that glitters is really old
New isotopic analyses of rock samples from one of the world's richest gold-mining regions suggest that the flecks of gold in those ores are more than 3 billion years old.
- Agriculture
Toxic bugs taint large numbers of cattle
U.S. cattle have dramatically higher rates of infection with a virulent food-poisoning bacterium than had been realized, a factor that leads to widespread carcass contamination during slaughter.
- Earth
Greenhouse Gassed
Scientists are discovering that more carbon dioxide in the air could spell disaster for plants and the animals that love to eat them.
- Agriculture
A Dairy Solution to Mildew Woes
Milk may prove the savior of some organic wines. Gray areas on these untreated grapes at Temple Bruer Wines reflect heavy powdery mildew damage. The grapes show splitting and “are useless,” notes Peter Crisp. Crisp This vine, treated with whey sprays, shows minimal mildew. Its grapes are acceptable for winemaking. Crisp This milk-sprayed vine also […]
- Earth
Cancer Causer? Researchers zero in on leukemia risks
Researchers add to mounting evidence that household pesticide exposure may be a significant risk factor for childhood leukemia.
