YouGov in need of apocalyptic education

I wonder about YouGov sometimes, I really do.  They've randomly asked a question about the likelihood of six different global apocalypse scenarios -

Nuclear war 37%
Climate change 13%
Worldwide revolution 5%
Zombies 3%
Judgement day 3%
Alien invasion 1%

- and somehow managed to include three joke options, while excluding the very real, scientifically-established risk of a comet or asteroid strike. And I can think of quite a few other technological or biological risks that I would rate considerably higher than "zombies". However, on the basis of the selection that is offered, I'm heartened to see that people do recognise that nuclear weapons remain the biggest single threat to humanity's survival. There's a complacent tendency in some quarters to regard the end of the Cold War as the solution to that problem, but in fact it did nothing more than buy us some breathing space - for as long as we leave thousands of these weapons sloshing around, it's inevitable there will be a devastating nuclear exchange sooner or later.

Indeed, the closest we've come to catastrophe since the Cuban Missile Crisis had nothing (or at least very little) to do with the Cold War - in the spring of 1990, the Americans were in a state of panic because Pakistan appeared to be preparing to launch a nuclear attack on India.

In case you're wondering, the purpose of the poll seems to have been to establish that UKIP voters are more fearful about the future than others. Hmmm. Some us are fearful about the future because of UKIP voters.