Earth

Agriculture

Rural ozone can be fed by feed (as in silage)

Livestock operations take a lot of flak for polluting. Researchers are now linking ozone to livestock, at least in one of the nation's most agriculturally intense centers. And here the pollution source is not what comes out the back end of an animal but what’s destined to go in the front.

Earth

Studies aim to resolve confusion over mercury risks from fish

Several new papers suggest strategies by which American diners can negotiate a mercury minefield to tap dietary benefits in fish.

Earth

Severe weather has favorite spots

New analyses of tornadoes and lightning highlight U.S. danger zones.

Humans

Mercury surprise: Rice can be risky

A new study out of China shows that for millions of people at risk of eating toxic amounts of mercury-laced food, fish isn't the problem. Rice is.

Earth

Ash from Icelandic eruption may just be the start

A recently awakened volcano often goes off in tandem with a much bigger one nearby.

Health & Medicine

Gulf War Syndrome real, Institute of Medicine concludes

U.S. veterans who claim to suffer from Gulf War Syndrome just received powerful new ammunition against arguments that their symptoms are trivial, if not altogether fictional. On April 9, the health arm of the National Academy of Sciences issued a report that concludes military service in the Persian Gulf War has not only been a cause of post-traumatic stress disorder in some veterans but also is "associated with multisymptom illness” – as in Gulf War Syndrome.

Health & Medicine

Traffic’s soot elevates blood pressure

Legions of studies have shown that air pollution can harm the heart and blood vessels. Scientists now have linked airborne concentrations of tiny black-carbon particles — soot — with increasing blood pressure in older men. They also showed that the genes we inherit appear to play a big role in determining our vulnerability to soot’s pressurizing impacts.

Earth

A fresh look at Mount St. Helens

Nearly 30 years after the peak’s major eruption, recovery has just begun.

Humans

Water, water everywhere

Sid Perkins uncovers the amazing amount of “hidden water” in many consumer products.

Chemistry

Study reports hints of phthalate threat to boys’ IQs

You may have a hard time spelling phthalates, but there’s no avoiding them. They’re in the air you breathe, water you drink and foods you eat. And this ubiquity may carry a price, particularly for young boys, emerging data suggest. Including a drop in their IQ.

Climate

Alaskan peatlands expanded rapidly as ice age waned

The rapid growth of Alaskan wetlands before 8,600 years ago was due to hotter summers and colder winters, which could spell trouble in a warmer world, a new study suggests.

Chemistry

Skin as a source of drug pollution

Traces of over-the-counter and prescription meds taint the environment. The presumption Ì and it's a good one Ì has been that most of these residues come from the urine and solid wastes excreted by treated patients. But in some instances, a leading source of a drug may be skin Ì either because the medicine was applied there or because people sweat it out.