As someone who speaks out against those who deny climate change—again and again and again and again—I knew exactly what Marshall Shepherd, the 2013
president of the American Meteorological Society, meant the moment he talked
about having to slay the “zombie theories of climate science.”
These are ideas that cannot be killed, no matter how thoroughly they are
debunked. They always rise to shamble again, reanimated by the deniosphere. “The
hockey stick is broken,” “the world hasn’t warmed in 16 years,” “Antarctic ice is growing.” These ideas are all wrong,
demonstrably so, but they are still walking the countryside, looking to eat
innocent people’s brains.
The only way to slay these undead specters is to keep hammering them,
repeating the facts, getting the word out there, and making the message
palatable to the folks who may not have all the information they need to make an
informed decision on global warming.
Which brings us back to Shepherd. He gave a great
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