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Single Stream Recycling

Long time readers may be aware that my father, Ron Danner, is an emeritus professor of Chemical Engineering at Penn State University. This is the second of two columns that we are co-authoring, both of which are pertinent to...

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Leuchtenburg rates Obama

“How will historians rate Barack Obama’s presidency?” Following up my conversation last week with historian William Leuchtenburg about the challenges Hillary Clinton faces in her campaign, I wanted him to begin to put Obama in...

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Paper or Plastic?

Long time readers may be aware that my father, Ron Danner, is an emeritus professor of Chemical Engineering at Penn State University. I am pleased to announce that for the next two weeks he and I are co-authoring two Common...

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Sturgeon, The Living Fossil

During the time I lived in Philadelphia, from 1989 through 1993, just across the Delaware River, the waterfront of Camden, New Jersey was undergoing a significant revitalization. One of the centerpieces of this effort was the...

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