I can't imagine there being a solution to rats in sewers. NYC is a sprawling city and the sewers are necessarily large and must be put in place where they can b

I can't imagine there being a solution to rats in sewers. NYC is a sprawling city and the sewers are necessarily large and must be put in place where they can be dug up and replaced. I feel like the more sustainable option is above ground, but I don't know NYC that well.