Green Energy

And you've said absolutely nothing of substance while misconstructing what I'm saying and engaging in the type anti-science behavior that were it to come from climate deniers this community would rip on.

Firstly, the "planet killer" example, was just an extreme example to demonstrate how an unexpected climate event can render solar panels completely useless. Another example I gave you was ashes from volcanic eruptions. This is simple deflection and bad faith argumentation. Secondly, let's continue on "planet killer event" anyway:

and if it happened now

And if it happened in 20, 50, or 100 years? Is your argument "I think if it happens now we're fucked, so it's pointless to prepare for the eventuality of it"?

the dust cloud would essentially kill our civilisation as we know it. a small percentage of people would survive, and it wouldn’t matter if they had nuclear power or not, there are other power sources other than solar

How would it kill civilization as we know it? Define "civilization", and tell me what it would look like in that scenario, and why it's not worth to try to minimize its destruction. And what leads you to believe only a small percent of the population would survive? And are they not worth preserving? Because even a small percentage can't eat or breathe dust, and as I said, with enough power you can grow food, have clean water, and make breathable air. And what other power sources are you referring to? Nuclear is the second safest energy source after solar by a distant margin, and except for maybe wind and solar, it's also the most environmentally friendly - which is important given these power sources would have to be setup in advance of the events in question, which could take hundreds or thousands of years to happen.

I'm tired of arguing this, especially with someone who doesn't seem interested in arguing in good faith and is quite stubborn in remaining unscientific, so I'll be leaving it at this.