Christian Science Monitor: It’s the sort of headline that would grab the attention of any city dweller: Urban ‘Green’ Spaces May Contribute to Global Warming. As it turns out, “green spaces” doesn’t mean pocket parks or wooded areas. It refers to grass. Grass in parks and grass covering athletic fields. And, although the study – from the University of California Irvine – looked at grass in parks, the conclusions may give pause to lawn-proud homeowners, too: Dispelling the notion that urban “green” spaces …