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July 20, 2009
Scientists to test limits of trees’ range
http://www.helenair.com/articles/2009/07/20/top/70na_090720_trees.txt
LOS ANGELES On naked patches of land in western Canada and United States, scientists are planting trees that don’t belong there. It’s a bold experiment to move trees threatened by global warming into places where they may thrive amid a ...
Posted in: The Helena IR on 07/20/09
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