Category Archive: Restoration & Conservation

Apr 02

Abandoned coal mines leave an enduring water legacy

When coal is mined in Pennsylvania, other minerals and metals including iron sulfide and aluminum are exposed and left behind. They’re typically harmless as long as they stay dry, but… Ryan: “As you get more precipitation, your water table increases. If you have too much groundwater it can fill up voids in underground coal mines …

Continue reading »

Permanent link to this article: http://www.currentcast.org/stormwater-management/abandoned-coal-mines-leave-an-enduring-water-legacy/

Mar 30

Butterflies and bogs

  In some northeastern wetlands, tiny brown butterflies called Bog Coppers feed on wild cranberry flowers. Their habitat requirements are very specific: “You not only need a bog, but you need the host plant, which is cranberry. They rarely move more than just a few meters away from their host plant,” says naturalist Jerry McWilliams. …

Continue reading »

Permanent link to this article: http://www.currentcast.org/development/butterflies-and-bogs/

Mar 24

When a wet winter can be bad for water quality

For more than 100 years, coal was mined near Turtle Creek in western Pennsylvania. The river became polluted. “But that began to improve through the 1970s,” says Gary Smith of the Pennsylvania Fish and Boat Commission. He says regulations and restoration projects led to cleaner water. Then last year a very wet winter filled abandoned mines …

Continue reading »

Permanent link to this article: http://www.currentcast.org/stormwater-management/turtle-creek/

Feb 21

Breakwalls do more than protect harbors from waves

In the Milwaukee Harbor, a 500 foot section of breakwall has been re-designed to support fish. It’s made of huge boulders that fish can hide between. Then it’s covered by a layer of smaller rocks that create habitat for prey. John Janssen of the University of Wisconsin, Milwaukee studies life on this breakwall. He’s found …

Continue reading »

Permanent link to this article: http://www.currentcast.org/green-infrastructure/breakwalls-do-more-than-protect-harbors-from-waves/

Feb 20

Bridging an urban-rural divide in the Midwest

When excess fertilizer or manure washes off farm fields, it can contaminate water that supplies nearby cities. But farmers may hesitate to change their ways because it can affect the bottom line. Using less fertilizer can reduce crop yields. And other solutions such as buffer strips may require taking land out of production. So the …

Continue reading »

Permanent link to this article: http://www.currentcast.org/stormwater-management/bridging-an-urban-rural-divide-in-the-midwest/

Older posts «