Still Waters Posted August 20, 2013 #1 Share Posted August 20, 2013 A new study of desert plants living on the slopes of Arizona's Santa Catalina Mountains has uncovered a startling fact: many trees and shrubs have moved a long way up-slope over the last 50 years. The shift could be caused by a warming trend in recent decades in the Arizona desert, or perhaps the 20-year drought. http://news.discover...#mkcpgn=rssnws1 2 Link to comment Share on other sites More sharing options...
Mr.United_Nations Posted August 20, 2013 #2 Share Posted August 20, 2013 No, if plants grow then there must be water underground and with the sun. So no is the answer Link to comment Share on other sites More sharing options...
questionmark Posted August 20, 2013 #3 Share Posted August 20, 2013 No, if plants grow then there must be water underground and with the sun. So no is the answer There must be water somewhere is the right answer, many desert plants condense their own from the humidity contained in the air. So rising temperatures could be a very valid explanation. Link to comment Share on other sites More sharing options...
brlesq1 Posted August 22, 2013 #4 Share Posted August 22, 2013 A 20-year drought? No wonder the plants are moving elsewhere. Link to comment Share on other sites More sharing options...
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