Question: how do we solve the population problem?

Oliver Gordon answered on 12 Mar 2019:

The rather ugly answer to this is that this happens in nature all the time. When a species doesn’t have enough predators, there is an overpopulation. They then run out of food, which then reduces the population down to a maintainable size.
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As for humanity, a lot of population problems are kind of our own fault. Poor land and money distribution means that about 1% of the world’s population have over 50% of the world’s wealth. I doubt this one is solvable though. Things like land distribution are a good one – we eat meat when we could be eating the plants that those animals eat – that means that more of the energy goes to us, rather than growing that animal which then gets killed, transported, frozen, etc.
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Then you have the more outlandish ideas about going to other planets. Except that doesn’t fix Earth though!
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I guess the rather sobering answer is that we as a species can’t continue the way we are doing at all, but it’s unlikely to change until it’s too late.
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Energy crisis is likely to be solved by Nuclear Fusion, which is how the sun generates energy. It’s a safe reaction that doesn’t produce radioactive materials – only water!