New York Times
Around 2004, large numbers of aspens in the West began dying off, and with no immediately identifiable cause, scientists dubbed the phenomenon “sudden aspen decline.” Ultimately the die-back was pinned on a severe 2002 drought and heat wave that left aspens vulnerable to pests, cankers and fungi.
Now, a new study suggests that the decline of the West’s aspens is not just marring the landscape, but also helping to spread a strain of hantavirus fatal to humans.
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