A contraction of population and pollution, and/ or a contraction of people and pollution, implying a vicious circle in that the continuing increase in population, coupled with stupidity and lack of caring, inevitably leads to an increase in pollution. To a large degree this process can not be stopped due to the second law of thermodynamics (aka the law of entropy) short of catastrophe such as a viral mass extinction. I coined this word independently the early 70's, but without the internet I had no way of knowing if others were using it.
With all of the populution we are duumbed. See also duumbed