Preparation shouldn't be excessive. It should be proportionate to the actual risks. So, what is the realistic possibility of various hazards?

regardless of geography

What are the risks to humans across the globe?

This is really interesting. The things that preppers usually focus on are listed in green, but they aren't very common. Disease is a far bigger concern.

On average, humans get killed one-by-one, not in large-scale calamities.

So perhaps the most important thing preppers can do is get health insurance, and eat well and exercise.

midwest, particularly Illinois & Indiana