Climatic changes and safety, two connected themes, very more than we think.
If the extreme effects of violent volcanic changes are also instigated the safety it goes from there middle, thousand of people look for shelter and shelter in the near territories and after some the cohabitation he exasperates. So many things are not born anymore and the people that before had been gatherings to the sudden one are discriminated and made object of sneer and every kind of abuse.
In Africa above all the first effects he is already seeing because many, a lot of in reality, they are forced to leave forever their country and so they end in a nightmare that seems to never end. Their life becomes impossible and he goes toward to an abyss.
Here is an interesting link that makes to understand how much the two themes are tightly tied. https://www.sipri.org/commentary/essay/2019/need-african-union-special-envoy-climate-change-and-security