Fingerprinting erosion

You may have noticed that after a heavy rainstorm, creeks and rivers often turn the color of chocolate milk. That cloudy brown color is caused by sediments—weathered rock material ranging in size from tiny granules of mud ...

Hypoallergenic parks: Coming soon?

Ah-choo! If you suffer from seasonal allergies, you're probably sick of this refrain. And you're not alone. Millions of Americans suffer from seasonal allergies. Moreover, there are allergy sufferers around the world echoing ...

Just say 'No' to drugs—in water

Remember the science fair? For some of us it was an exciting time of creative experimentation. For others it was a time of botched and badly displayed data. For 16-year-old Maria Elena Grimmett, it's a blast. And she isn't ...

When trees aren't 'green'

Most of us don't consider forests a source of pollution. As natural bodies, they should be good for the environment. But a recent study in Japan shows that older cedar and cypress plantations are causing as much pollution ...

Wetlands continue to reduce nitrates

Wetlands created 20 years ago between tile-drained agricultural fields and the Embarras River were recently revisited for a new two-year University of Illinois research project. Results show an overall 62 percent nitrate ...

Tracing the course of phosphorus pollution in Lake Pepin

In recent years, many lakes in the upper Midwest have been experiencing unprecedented algae blooms. These blooms threaten fish and affect recreational activities. A key culprit implicated in overgrowth of algae in lakes is ...

Old concrete can protect nature

Usually we think of demolished concrete walls and floors as environmental contaminants, but in fact this material may turn out to be a valuable resource in nature protection work. This is the conclusion from researchers from ...

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