I've been more and more conscious about microplastics. I was not aware that the laundry and dishwasher pods are just plastic which then goes into the water system.
It could give rise to organisms with mechanisms already in place to deal with them. Unfortunately, the organisms with no such traits aren't going to magically mutate. Good news for the organisms that can process micro plastics, less predation.
If people do start dieing en masse, though, and modern science has to quickly adapt we might see some major advancements in bio technology. Biggest thing being, lifting some of the taboos around gene manipulation.
Please take everything I say with a grain of salt. I tend to fantastical thinking.