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Portland's Pavement Pulverizers
Known as Depave, the group has worked cooperatively with the city of Portland to legally remove pavement and build green spaces for neighborhoods and schools.
"Since 2007, this all-volunteer squad of pavement-bashers has ripped the asphalt and concrete from 14 sites in the Portland area, making way for community gardens, sustainable schoolyards, and green space.
They've torn up unused parking lots, obliterated cracked ballfields where no one has hit a ball for years, and given tens of thousands of square feet of dirt a chance to breathe."