Earth
- Earth
Young and Restless: Ancient Earth shows moving crust
The oldest rocks in the world show that Earth's shifting crust began its tectonic movements almost 4 billion years ago.
- Earth
World’s climate map gets an update
A century-old system of categorizing the world's climates has been updated to include modern weather data, thereby providing researchers with a tool to better verify results of their computer simulations.
- Earth
More Than Monarchs
More Than Monarchs.org exists to raise awareness about the devastating impact of illegal logging on the environment and local communities in the Monarch Butterfly Biosphere Reserve in central Mexico. The Web site provides a platform for villagers, community leaders, government officials, and other people to communicate and collaborate toward ending the destruction of forests that […]
- Earth
Hey, it’s cooler near the sprinklers
Extensive agricultural irrigation can significantly affect local climate and may be masking the effects of global warming in some areas.
- Earth
Hibernation concentrates chemicals
Some pollutants accumulate in grizzlies during the bears' hibernation.
- Agriculture
Herbal Herbicides
Scientists are tapping plants, and the self-defense chemicals they make, for new weed killers, many of which may find use in organic farming.
- Earth
National Environmental Education Week
The third annual National Environmental Education Week will take place April 15-22, 2007, culminating with Earth Day on April 22. This site provides information about activities planned for that week. Go to: http://www.eeweek.org/
- Earth
High and Dry: Pollution may stifle mountain precipitation
Trends seen in meteorological data gathered on a Chinese mountaintop suggest that air pollution reduces the amount of precipitation that falls in high-altitude regions.
- Earth
DNA pinpoints poached ivory tusks
Scientists tracked the origin of an illegal ivory shipment to Zambia by using an improved DNA-analysis technique to study the confiscated tusks.
- Earth
Not-So-Perma Frost
The world's warming climate, as well as ecological shifts in the timing and frequency of wildfires in boreal forests, pose an increasing threat to Arctic permafrost.
- Earth
Traces of Trouble
Scientists and engineers are investigating how to stem the flow of naturally-occurring and synthetic estrogens that, when released from waste water treatment plants and livestock operations, can harm aquatic life.
- Earth
Equal Opportunity Outcome: Different pollutants show same impact
At concentrations present in the environment, each of three dissimilar toxic agents can seize control of a signaling pathway that regulates developing cells in the central nervous system.
