Joshua Tree (Yucca brevifolia) in the Mojave Desert, is ironically inundated by surface rain water runoff after a heavy rain storm in Joshua Tree National Park, California. Several studies have been done on these centuries-old trees. In a current study, ecologists from the US Geological Survey linked climate change to population decline and are modeling the impacts of climate change on their survival, and the possibility that 90 percent will be wiped out of their current range (and out of this national park) in 60 to 90 years.
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