I'm not sure what the distinction you're trying to make is. The total amount of pollution is the sum total of every individual's pollution. In order to reduce t

I'm not sure what the distinction you're trying to make is. The total amount of pollution is the sum total of every individual's pollution. In order to reduce the total amount of pollution, individuals have to pollute less (on average). Conversely, if individuals pollute less (on average), then total pollution goes down.