On one hand many countries will invest in heavy industry, manufacturing, and fall back to fossil fuels.
On the other hand, economy overall should slow down and consumption of non-essential goods and services will drop.
I’m not expecting any definite answers or numbers, of course, just some food for thought.
Most countries don’t have fossil fuels and 28% of oil is offshore. Also heavy industry is very mineral dependent. Let’s be honest, if there will be WW3 most of people will starve to death and start killing and eating each other. Most people don’t know how to get clean water without water pipe. Look how much aid is coming to little country like Palestine to keep them alive. Given that I think it will decrease