What can tree cover tell us about income inequality? Photos from the blog Per Square Mile. Top photo is West Cambridge. Bottom photo is of Ball Sq. in Somerville. Source: http://ht.ly/cijWd

What can tree cover tell us about income inequality? Photos from the blog Per Square Mile. Top photo is West Cambridge. Bottom photo is of Ball Sq. in Somerville. Source: http://ht.ly/cijWd