AUDIO
Go Green Expo interview with George Irwin, Philly Green Wall
Earth to Philly talks to Green Wall Editor George Irwin at the Go Green Expo last weekend. Irwin is with Philly Green Wall and Roof, a company that helps people establish foliage and even edible crops on their walls.
Listening notes: To listen to audio, you'll need a Flash player (free download)
Does dredging the Delaware River really matter? Plans by the Army Corps of Engineers to deepen the navigation channel from 40 to 45 feet have generated support from shipping companies and heated opposition from environmentalists.
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