The Mugwumpery

Here’s another letter to The Economist, this one from 2006-11-27.  I didn’t expect them to publish it, and they didn’t.  But I had to get it off my chest (hey, that’s why I post here, too).

SIR –

Tongue-in-cheek, David Crawley suggests a defence against alien invasion [Letters, 18 November].  If it were possible to evaluate and counter the capabilities of aliens, such a plan might be wise.  Unfortunately, any hostile aliens able to bring a force to our planet are likely to be so advanced as to make any defence we might offer entirely ineffectual.  (We have no way to estimate the likelihood of such an attack, as we have no information about the distribution of intelligence in the universe. ) Yet the absence of radio signals from other stars is, if anything, ominous, as we have known since Copernicus that Earth’s situation is in no way special or unique – if our neighbor’s transmissions have been suppressed, perhaps ours will be as well.

That said, a defence against global warming [the real subject of Mr. Crawley’s letter] is not in the same category – there are remedies such as increasing the Earth’s albedo (reflectivity) – a requirement that future roads and rooftops be painted white would be an inexpensive start, or reducing the sun’s heating of the Earth, for example by placing large inflatable sunshades at the Lagrange point between the Earth and Sun.  Others will have better suggestions.  We do not need to freeze in the dark.

This guy Crawley sent a sarcastic letter criticizing governmental action on “the risk of something really catastrophic” resulting from global warming, because “only a minority of scientists perceive this as a threat and the costs of such a defence are enormous”, then comparing it to the results of an alien invasion.

I thought it was a lousy analogy, and said so above. I should have avoided getting side-tracked with a discussion of Berserkers (scary and interesting as that may be, The Economist is not ready for it).