Cities Search For Ways To Stay Green

"Based on satellite images of 40 US cities, American Forests reported in 2003 that “urban areas have 21 percent less tree canopy today than they did 10 years earlier...As tree cover declines, cities suffer in many ways. ...For new urbanists, a chief concern is the viability of street trees. Urban designers depend on rows of trees to narrow the perceived width of thoroughfares, to generate a sense of enclosure for outdoor areas, and to make public areas more inviting for pedestrians... Trees produce measurable economic benefits — for property owners and for communities."