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I still find it hard to swallow.
Less than fifty years ago everyone jumped on the bandwagon about global cooling and how another Ice Age was on hand. Now, everyone is up in arms about global warming. Even if they took every bit of evidence they have (as far back as merchant logs sailing in the 1700s), the time scale isn't nearly enough to base the theory on. 300 years isn't even a milli-second when compared to the life of the planet so far.
We have definitly seen this sort of thing happen in the past within the scientific community. A new, barely understood theory comes about and anyone that doesn't buy in is a fraud/hack/idiot. So much so that anyone that dissents is black balled out of science.
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