From the Boston Globe: The City Is an Ecosystem
The city is an ecosystem, pipes and all What scientists are finding when they treat the urban landscape as an evolving environment of its own By Courtney Humphries Boston Globe Correspondent November 07, 2014 Is a tree trying to survive in the city better off than a tree growing in the forest? The obvious answer would seem to be “no”: City trees face pollution, poor soil, and a root system disrupted by asphalt and pipes. But when ecologists at Boston University took core samples from trees around Eastern Massachusetts, they found a surprise: Boston street trees grow twice as fast...