Christopher Harnish, left, and his brother, Bryan Harnish, both of Lancaster County, PA, examine their first-year crop of hemp plants, which can grow to 20-feet tall. (Dave Harp)

Bay scientists studying environmental, economic uses for hemp

Backers cite its benefits for humans, soil, and water; others question environmental claims By: Ad Crable, BayJournal.com A Gold Rush

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