Earth
- Earth
Sediments Sink River’s Flow into Sea
Deep-sea observations of occasional sediment-rich plumes of fresh water dumped into the ocean by rivers suggest that such underflows may be a prime conveyor of pesticides, organic carbon, and various nutrients to the seafloor.
- Earth
EPA switchback on arsenic
On Oct. 31, the Environmental Protection Agency rescinded its March decision to rescind a proposed tougher limit on arsenic in drinking water and is now planning to implement the tougher limit of 10 parts per billion in 2006.
- Earth
Cancer risk linked to night shifts
Women who work the graveyard shift increase their chance of developing breast cancer, perhaps because of chronic suppression of melatonin.
- Earth
Farmers could help heal Gulf of Mexico
Farm-derived nutrients in the Mississippi River that create a huge dead zone in the Gulf of Mexico could probably be substantially reduced if farmers simply used a little less fertilizer.
- Earth
Uranium recorded in high-altitude ice
An international team of scientists has analyzed a lengthy core of ice and snow drilled from atop Europe's tallest mountain to produce the first century-long record of uranium concentrations in a high-altitude environment.
- Earth
Grape-harvest dates hold climate clues
The vintner's habit of picking no grapes before their time may give scientists a tool that could help verify reconstructions of European climate for the past 500 years.
- Earth
Bottled Water for All?
U.S. households are water hogs. On average, each man, woman, and child uses an average of 100 gallons of tap water per day. What faucet did this water come from? In some Wisconsin homes, that could be an important question if a proposed change to the plumbing code goes into effect. PhotoDisc In fact, the […]
- Earth
Researchers confirm sea change in oceans
A new analysis of ancient seawater shows that the ocean's chemistry has fluctuated over the last half-billion years.
- Earth
How polluted is a preschooler’s world?
Preliminary data from a new study show that children may ingest traces of atrazine, a common herbicide, in their drinking water.
- Earth
Kitchen tap may offer drugs and more
Excreted drugs and household chemicals are making their way through community waste-treatment and drinking-water plants.
- Earth
Composting cuts manure’s toxic legacy
Composting manure reduces its testosterone and estrogen concentrations, limiting the runoff of these hormones, which can harm wildlife.
- Earth
Photo Treasures
The National Oceanic and Atmospheric Administration offers an amazing library of more than 16,000 spectacular images, organized into a variety of topical sets. You can browse image collections devoted to coastlines, fisheries, ships, polar regions, severe storms, undersea research, nature reserves, flight, geodesy, coral reefs, and many other subjects. Go to: http://www.photolib.noaa.gov/ .
