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August 14, 2013 at 7:32 PM
Climate change is cyclical
By neglecting to mention that the Earth has been warming and glaciers receding since the end of the last major ice age more than 10,000 years ago, Jonathan Martin implies that man is solely responsible for climate change. [“Glacier National Park, melting before our eyes,” Opinion, Aug. 12.]
That’s like accusing someone of littering, while failing to point out that it happened in a pre-existing garbage dump.
Man is contributing to climate change, but the process began long before the industrial age; it would be going on even if man had never left the stone age, and it will end when natural forces return the world to a cooling cycle.
I suspect that efforts by man to slow or stop climate change will be as effective as trying to tidy the garbage dump by picking up a few candy wrappers.
Gerry Bruder, Seattle
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