Earth
- Earth
Nearly Naked: Large swath of Pacific lacks seafloor sediment
Little or no sediment has accumulated on a broad patch of ocean bottom in the remote South Pacific, the result of a combination of factors that probably can't be found anywhere else on Earth.
- Earth
Ancient hot spell is linked to copious carbon dioxide
A mineral that formed in some lakes during a lengthy and particularly warm period in Earth's past suggests that atmospheric concentrations of carbon dioxide were at that time at least triple those found in today's air.
- Earth
Hot, Hotter, Hot: Climate seesawed during dinosaur age
The climate during the time of the dinosaurs varied far more than scientists had previously thought.
- Earth
Reading the tale of an ancient river
Ocean-floor sediment near England holds material deposited during the last ice age by what was then Europe's largest river system.
- Earth
Space Weather News
Updated daily, this Web site provides news of activity in the sun-Earth environment, including solar wind, sunspot, and solar flare data, along with information on near-Earth asteroids, geomagnetic storms, and more. Go to: http://www.spaceweather.com/
- Earth
Gassy Bugs: Microbes may produce propane under the sea
Microbes deep under the ocean's floor could be the source of some ethane and propane found in sediments.
- Earth
Mystery of the Missing Heat: Upper ocean has cooled slightly in recent years, despite warming climate
Between 2003 and 2005, the top layers of the world's oceans cooled slightly, but scientists aren't sure where the heat went.
- Earth
Tox Town
This Web site from the U.S. National Library of Medicine offers an interactive introduction to toxic chemicals and environmental health risks that people might encounter in everyday life and in everyday places. The site includes many links to additional information and a section for teachers. Go to: http://toxtown.nlm.nih.gov/
- Earth
Sustainable Design Competition
Do you have an idea for a cutting-edge technology that could protect the environment while promoting economic growth? The U.S. Environmental Protection Agency (EPA) is offering college professors and their students an opportunity to turn ideas into reality through its P3 (People, Prosperity and the Planet) grants competition. EPA’s P3 is a student design competition […]
- Earth
Sea Turtles—What Not To Eat
Wildlife scientists hope to reduce widespread consumption of sea turtle meat and other products by pointing out the health risks they pose.
- Earth
Link between El Niños and droughts in India
Scientists have discovered a correlation between droughts in India and a particular type of El Niño, the climate phenomenon marked by increased sea-surface temperatures in the tropical Pacific.
- Earth
Magma heats up as it crystallizes
Molten rock moving through a volcano's plumbing prior to an eruption can sometimes heat up substantially as it approaches Earth's surface.
