A brief history of global warming

This is the way I remember it. My memory ain't great for details like dates, but the overall progression reflects my recollections. Specific dates refer to New York Times articles.

1975: Earth's overall temperature observed declining sharply in recent decades.
Climate experts are alarmed by global cooling. Solution: expand government powers, fund more climate research.
1981-08-22: Earth's overall temperature observed rising.
Climate experts are alarmed by global warming. Solution: expand government powers, fund more climate research.
1988-08: Unusually high temperatures.
Climate experts say this confirms the validity of their global-warming models.
1996-01-14: Worst blizzard in 48 years paralyzes the northeast.
Climate experts say this confirms the validity of their global-warming models, explaining that "warming" is just shorthand for many complicated things that they didn't mention before but that definitely included blizzards, as they knew all along, absolutely.
2004: Very bad hurricane season.
Climate experts say this confirms the validity of their global-warming models.
2005: Another very bad hurricane season.
Climate experts say that this further confirms the validity of their global-warming models, and that it gives us a taste of what we're in for if we don't take their advice and expand government powers and fund more climate research.
2006: Extraordinarily mild hurricane season.
No hurricanes made landfall in the United States. Climate experts are unavailable for comment.
2006-12-13: NASA reports that 1998 was the warmest year on record.
NASA also reports that all five of the warmest years on record occurred after 1980. Climate experts say this confirms the validity of their global-warming models.
2007-08-14: Oops. NASA admits goof: warmest year was 1934.
NASA also reports that three of the five warmest years on record occurred before 1940. Climate experts warn against overinterpreting individual data points.

Apology to honest climate experts:

This is a portrayal of climate experts as they appear after being filtered through the media. I'm sure there are many competent, honest climate experts out there, but whatever reasonable and balanced things they're saying are not getting into our public discussion.

And my point is . . .

My point is that our public discussion of climate change is "a tale told by an idiot, full of sound and fury, signifying nothing." In particular, it is not an honest scientific discussion. To get an idea of what an honest scientific discussion looks like, consider this excerpt from Richard Feynman's chapter on Cargo Cult Science (in Surely You're Joking):

It's a kind of scientific integrity, a principle of scientific thought that corresponds to a kind of utter honesty—a kind of leaning over backwards. If you're doing an experiment, you should report everything that you think might make it invalid—not only what you think is right about it: other causes that could possibly explain your results; and things you thought of that you've eliminated by some other experiment, and how they worked … Details that could throw doubt on your interpretation must be given, if you know them. … If you make a theory, for example, and advertise it, or put it out, then you must also put down all the facts that disagree with it, as well as those that agree with it.

Back to Peter's Stuff.

2007-10-19

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