[PCA] NEWS: Climate Change Causing Massive Movement of Tree Species Across the West

[Olivia Kwong]

http://www.sciencedaily.com/releases/2011/11/111103081431.htm

Climate Change Causing Massive Movement of Tree Species Across the West

ScienceDaily (Nov. 3, 2011) -- A huge "migration" of trees has begun 
across much of the West due to global warming, insect attack, diseases and 
fire, and many tree species are projected to decline or die out in regions 
where they have been present for centuries, while others move in and 
replace them.

See the link above for the full article text.