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Baltimore officials tout greening efforts
With its dandelions, clover and discarded cigarette butts, the little "bioswale" in front of the Salvation Army community center in West Baltimore won't win any lawn-care prizes. But the shallow, weedy depression collects rainfall washing off an acre of litter-strewn pavement and filters out pollution that otherwise would foul the harbor.
By Timothy B. Wheeler, The Baltimore Sun
May 1, 2012