[PCA] NEWS: USGS: large tree population declining in Yosemite

[Olivia Kwong]

http://news.yahoo.com/s/ap/20090730/ap_on_re_us/us_yosemite_trees

USGS: large tree population declining in Yosemite
By Jared Grigsby, Associated Press Writer -- Wed Jul 29, 11:06 pm ET

FRESNO, Calif. -- Scientists with the U.S. Geological Survey said 
Wednesday there are fewer large-diameter trees growing in Yosemite 
National Park than in years past, most likely because of climate change.

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