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APRIL 22

Where have all the counterculture McGoverniks gone? Twenty-five years ago, the first Earth Day was highlighted by smearing Big Oil-owned properties with petroleum products; today’s celebration will feature the music of mostly mainstream country performers. The entertainment portion of the event will be MC’d by aging girl-next-door Martha Quinn and perky chat-show host Jon Stewart, and will include musical sets from the Mavericks, Mary Chapin Carpenter (pictured), Sawyer Brown, Kathy Mattea, and Boyz II Men. The topically meaty portion consists of addresses from former Wisconsin Congressman Gaylord Nelson, “the Father of Earth Day,” as well as a host of greenie activists whom organizers describe as “people nobody’s ever heard of.” No styrofoam coolers, please. The seven-hour fun-fest runs from 11 a.m.-6 p.m. on the National Mall grounds, between 4th & 7th Sts. NW. FREE. (202) 244-8333. (Dave McKenna)