Uh, all of these things are happening already, and will continue to happen. The biggest causes of unnecessary misery in this world are political (which of course encompasses the physical environment.)

The questions are what the best course of action would be: for individuals, neighborhoods, states, continents.

We cannot escape the physical environment we live in, and to fantasize that somehow compiling a list of risks could lead to some dramatic action is not illuminating. Taking such talking points out of context is confusing.