Stop Worrying About Asteroids
alnapp writes: "It appears that international efforts to track asteroids are missing the main worry, according to Bill Napier of the Armagh Observatory speaking to New Scientist. Comets, it would seem are more likely to cause us grief. I know that as kids we were told that space dust was bad for you (is that a too "UK" centric reference) but this seems like just another panic waiting to happen."
The article clearly states that the danger from comets is about the same as the the danger from NEOs. For those too lazy to follow the link, or if it gets /.ed, the danger is that a comet could evaporate, leaving lots of dust in Earth's orbit, which would be picked up as we move through it, blocking out the sun and causing an ice age.
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