The idea I'm currently working with would be the world overpopulated, things a bit further in the future in terms of the effects of climate change than now, being hit with a global virus that kills the majority of the population. (I am toying with having some become zombies.) Imagine the covid pandemic but with a higher death toll and with a world under severe climate change impact.
The main plot would focus on relationships, human nature, and survival in this new world, but I would like climate change to be a sort of subplot.
The setting is England (West Midlands) so I was wondering how things like power, water, etc. would be affected by the population decrease. Also things like flooding and extreme weather impact the area. Beginning in a small city/large town setting with characters slowly moving out towards less populated/countryside setting. Would it take very long for nature to heal and 'take over'?
If you have information more specific to how this would take place in the UK that would be helpful :) TIA