Earth
- Earth
Comet likely culprit in Tunguska blast
Analysis of shuttle plume movement suggests Tunguska event could have caused clouds over London.
- Agriculture
How weed killers might protect our eyes: It’s corny
Herbicides can boost trace-nutrient concentrations in sweet corn.
- Chemistry
CO2 sponge
Macromolecule that was accidentally discovered seems to trap carbon dioxide from the air.
- Earth
Salty water power
A study reports a new, cheaper way to harvest energy from salt water and fresh water.
- Tech
Electric grid still very vulnerable to electromagnetic weaponry
BLOG: Smart grid advocates weigh in on the vulnerability of the U.S. electrical infrastructure to electromagnetic pulse radiation.
- Paleontology
Fossil shows first all-American honeybee
Nevada find contradicts long-held view of Europe and Asia as the native land of all honeybees.
- Humans
Traffic hydrocarbons linked to lower IQs in kids
Prenatal exposures to common air pollutants correlate with a drop in intelligence scores.
- Earth
Pollution vs health reform
Health care reform should include investments in measures that curb the pervasive pollution contributing to costly disability and disease.
- Earth
Lopsided lights
Simultaneous snapshots reveal that northern and southern auroras aren’t always alike.
- Earth
A hundred new nukes?
Here are some issues to contemplate while deciding whether to welcome the nuclear-power renaissance that Sen. Alexander has just proposed.
- Earth
Signs of ancient sea ice
New analyses of Arctic seafloor sediments suggest floating ice debuted in the ocean at least 47.5 million years ago.
- Earth
Arctic images declassified
High-res Arctic sea images should be declassified, says National Research Council.
