Inhabitat ran a post last week entitled “5 Crazy Ways to Stop Climate Change with Geoengineering”. Some of the entries were knowingly silly (see number five: a $350 trillion lens to be built in space, for example), but others seem like the kind of thing a certain kind of politician might get behind. Dealing with our problems via a single grand gesture has a kind of appeal, but most scientists shake their heads at these kinds of solutions. Why is that?
There’s an old short story called: “Watchbird”, by Robert Sheckley. The heroes of his story succeed in creating a law-enforcing drone that is able to detect the particular physiological activity of an individual intent on violence against another human being and to disable an attacker. These birds quickly put police homicide departments out of business, wheeling above in the sky, ready to swoop at a moment’s notice on those with criminal intent..... more
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