Sugar-book author H. Leighton Steward, about whom I have written before, was on Capitol Hill this week arguing that rising CO2 concentrations are nothing to worry about. Among his claims is this, as reported by US News & World Report's Paul Bedard:
As an example, he said that Earth's atmosphere currently has about 338 [sic] parts per million of CO2 and that in Navy subs, the danger level for carbon dioxide isn't reached until the air has 8,000 parts per million of CO2.
If there was a prize for most irrelevant factoid ever offered in the history of climate change policy debates, other contenders might as well throw in the towel.
In case Bedard heard wrong, I checked Steward's website, which includes this gem:
Several studies have demonstrated, however, that these problems do not seriously impact human health until the air's CO2 concentration reaches approximately 15,000 ppm (Luft et al., 1974; Schaefer, 1982), which is approximately 40 times greater than its current concentration.
Tell me again, who is arguing that doubling the atmospheric CO2 concentration will cause direct harm to human health? Glenn Beck? Rush Limbaugh, maybe? I don't know whose actions are more puzzling: Steward's, for misleading representation of basic science or Bedard's, for uncritical reporting.
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I don't care about global warming. I am, however, scared to death of the loss of my freedom by the socialist in chief. Keep up the good work Glenn Beck and Rush. We need some voices of sanity out there in liberal fantasy land.
Conservatives are so silly.....I hope you have no children Rob.
H. L. Steward just cured me of my Obama-honeymoon-is-over-and-what's-he-achieved cynicism.
When this kind of thing is being put to U.S. senators, the fact that the President has achieved not being a complete moron is quite enough for me.
Rob, I'm ashamed to share a name with you.
You might find this an enlightening read, and perhaps learn something about yourself.
http://sciencepolicy.colorado.edu/admin/publication_files/resource-2590…
It might be fun to calculate the climatic effects of atmospheric carbon dioxide at 8-15 ppk.
We might start with John Barnes's sf novel Mother of Storms (which includes, along with a single typhoon that kills a billion people, sly satires on heroic-engineer science fiction and a scarily-accurate parody of broadcast journalism), and them amp it up another order of magnitude.