http://depts.washington.edu/hhwb/ A new web site provides facts about the social benefits of urban forestry and urban greening. Metro nature - including trees, parks, gardens, and natural areas - adds beauty to built places. The experience of nature in cities is profoundly important for many other reasons. Scientific studies tell us why. Find out more about the research at Green Cities: Good Health en-us 2010 University of Washington. All rights reserved.