Maryland highway officials are planting thousands of trees statewide to help filter stormwater that runs off roads and pollutes waterways.
The State Highway Administration is planting nearly 120,000 trees on 480 acres
along interchanges and grassy areas where they won't hinder visibility. The trees
are being planted in the counties of Anne Arundel, Baltimore, Carroll, Charles,
Frederick, Harford, Howard, Montgomery and Prince George's.