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Eco-photos of the week: May 15-21

The Susquehanna River, a 444-mile waterway that runs through New York, Pennsylvania and Maryland, was named the most endangered river on Tuesday by a national conservation group.

Photo: ZUMA Press

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Susquehanna in danger

The Susquehanna River, a 444-mile waterway that runs through New York, Pennsylvania and Maryland, was named the most endangered river on May 17 by a national conservation group.

The river, shown here in this 2009 photo, is in danger because of hydraulic fracturing activity in the area. Also known as fracking, this process extracts natural gas from shale by blasting a mix of sand, water, and chemicals into the rock.