Oct 04

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 …

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

Oct 03

Managing Stormwater and Sewage

In many parts of Pittsburgh, stormwater and sewage are carried in the same pipes. So during heavy rain, the system can overflow, and dump untreated sewage directly into the city’s rivers. “As we get more and more rain, it just is an outdated way of managing the flow of stormwater. And it’s just disgusting,” says Stephan …

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Permanent link to this article: http://www.currentcast.org/stormwater-management/managing-stormwater-and-sewage/

Oct 02

Coal ash goes to court

When coal is burned for power, a residue called coal ash is left behind. “It contains a slew of toxic pollutants such as arsenic, cadmium, and selenium,” says Lisa Hallowell of the nonprofit Environmental Integrity Project. She says utilities used to frequently dispose of coal ash in unlined ponds that could leak into ground and surface …

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Permanent link to this article: http://www.currentcast.org/toxic-contamination/coal-ash-goes-to-court/

Oct 01

Take me home, country roads

Driving on dirt roads kicks up dust that can make it hard to see and cause respiratory problems for people who live nearby. In some areas, a wastewater mix from oil and gas production is sprayed on dirt and gravel roads to suppress the dust. The wastewater is usually free. But it contains radium, which …

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Permanent link to this article: http://www.currentcast.org/toxic-contamination/take-me-home-country-roads/

Sep 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. …

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

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