We can’t have a population of over 7 billion on this planet and expect to consume resources at the present rate.

We either need to go for more sustainability (energy sources, make durable goods truly durable) or we need to have a lower population in the long term. Otherwise, clean air, clean water, land without diseases and with a good climate, will become things to fight over. We’ll run the real risk that population reduction will happen through nuclear war or worse.