Ah yes, the liberal mantra of "We're destroying the Earth with CO2, but we can't destroy a small rock with 1,000 nuclear missiles."
Sigh...
It's utterly untrue, but makes for a catchy mantra to mindlessly repeat.
There is no way we could get ONE nuke out to where it needs to be. The Shuttle only went 450 miles high, about the drive from NYC to DC. That would be seconds before impact, maybe less.
We need to get the nukes out by the orbit of Mars to be effective, and we simply can’t do that now. With a dozen years to plan, maybe.