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Ecology

(A streetcorner Christmas tree vendor in New York City.  File photo by  Mario Tama/ Getty Images)

Ecology Expert Says A Real Christmas Tree is the Way To Go

“It sounds a little counterintuitive because you hear us greenies tell you all the time, ‘reusable this, reusable that,’ ” notes a Sierra Club editor.

12/15/2012

(The biowall in Drexel University's integrated sciences building.  Credit: Paul Kurtz)

Drexel University Biowall Becomes Showpiece For Eco-Building Advocates

The Delaware Valley Green Building Council is hoping that a recently completed project at Drexel University will spur interest in the construction of more “living walls.”

02/23/2012