Vivvo CMS 4.1 PRI: Public Radio International http://www.pri.org/ ©2010 Spoonlabs d.o.o. PRI: Public Radio International http://www.pri.org/files.php?file=rss_682409203.gif http://www.pri.org/ New research survey suggests urban trees are on the decline http://www.pri.org/stories/science/environment/new-research-survey-suggests-urban-trees-are-on-the-decline-8967.html Environment Fri, 16 Mar 2012 10:17:00 -0500 Research from the U.S. Forest Service found that in 19 of 20 U.S. cities surveyed, urban trees are on the decline. The vital piece of urban infrastructure are declining an average of three percent per year. PRI: Public Radio International