Comment Asteroid != Climate Change (Score 2, Insightful) 391
A conspicuous "global killer" hurtling towards us overcomes the basic psychological barriers which inhibit the acceptance of global warming as a genuine, urgent threat (and which currently our hobble cooperative efforts). It's a good deal harder to "deny" that a giant rock is going to strike the Earth than it is to disingenuously claim "the science isn't there" about the highly complex, scientifically abstract climate system.