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Political Factoid
"The research* on eastern red
cedar trees ... [has shown] changes
in the types of carbon and sulfur
in their tree rings a few years
after the Clean Air Act was
enacted in 1970."
- The changes are for the better.
- Similar changes happened during
the Great Depression of the 1930s
with the major cutback in the
industrial and automobile
fossil-fuel emissions.
| * |
University of West Virginia
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