Very often the problem doesn't seem to be the disaster itself, it's how unprepared we are to deal with it and the fact it's economically unfeasible. People can'

Very often the problem doesn't seem to be the disaster itself, it's how unprepared we are to deal with it and the fact it's economically unfeasible. People can't just move to a healthy, habitable planet nearby because there is no such (known?) thing. Think about how devastating nuclear war would be on our lifestyle, when things such as viruses and a higher frequency of cold and heat waves are already disrupting it.