Earth
- Agriculture
Using Light to Sense Plants’ Health and Diversity
Laser scanners may help farmers better tailor when and how much to fertilize their crops, with side benefits for the environment.
- Earth
The river’s rising: A depressing effect
When the Amazon River swells in flood each rainy season, the immense weight of the water causes Earth's surface in the region to sink dozens of centimeters.
- Earth
The Wind and the Fury
New research suggests that, as global warming proceeds, hurricane winds will gain speed and the storms will dump more rain, but controversy lingers as to how much more violent the storms will become and when they will occur.
- Earth
Cancer-fighting e-mails
A new federal service, offered jointly by the U.S. Environmental Protection Agency and the National Weather Service, will notify individuals, via e-mail, when the sun's cancer-causing ultraviolet radiation is forecast to be unusually high.
- Earth
Changing Earth
Developed by the Smithsonian Institution’s National Museum of Natural History, this Web site focuses on Earth’s history. Visitors learn basic concepts of geological processes and evolution as well as gain a deeper understanding of how and why Earth changes and the impact of these changes on living organisms throughout its history. The site includes a […]
- Earth
Can polluted air cause birth defects?
For the second time, scientists have found evidence suggesting that prenatal exposure to air pollution may cause certain birth defects.
- Earth
Nonstick Pollution Sticks in People
A new study reveals high blood concentrations of a potentially toxic component of nonstick products in people near a plant making Teflon.
- Earth
Sea Monitors
Developed by researchers at the Georgia Tech Research Institute, SeaMaven is a new Web portal that gives students access to data collected from naval platforms 60 miles off the coast of Georgia. Eight platforms, currently operated by the U.S. Navy for flight training, have been equipped with sophisticated sensors to monitor various ocean and meteorological […]
- Earth
Seafloor features steered tsunamis
Tsunamis circled the globe after a magnitude 9.3 earthquake struck the Indian Ocean last Dec. 26, but the waves didn't spread evenly.
- Earth
Spores record changes in ozone concentration
Decreasing concentrations of atmospheric ozone over Antarctica have triggered changes in the spores of a plant that grows in the region, a trend that could give scientists insight into ancient extinctions.
- Earth
Earthshaking Event
Seismic instruments have provided a wealth of information about the earthquake that rocked Sumatra on Dec. 26, 2004.
- Earth
Inhaling salt raises blood pressure
People who work in environments where large amounts of salt particles hang in the air may literally breathe their way to high blood pressure.
