Can Flowers Cleanse The Earth?

Plants hold great promise in waste cleanup

A former Energy Dept. uranium-conversion complex outside Ashtabula, Ohio, is an environmental nightmare, its soil laced with deadly uranium. Cleaning it up would ordinarily mean carting away thousands of tons of polluted dirt at great expense. Now, hope for a better, cheaper approach is blooming--literally. In a small greenhouse on the factory grounds, scores of sunflowers are sucking the uranium out of contaminated water pumped from the soil.

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