How can we prevent pollution?
There is no way to completely prevent pollution forever, humans aren't even the only "polluters" on earth so even if they were eliminated from the equation it's still impossible (eg. volcano spews ash and lava). The facts are, that we can only decrease the amount of pollution that we, as humans, cause, and mitigate what occurs naturally. For more information I'd recommend specifying to categories of pollutions. (eg. air pollution, carbon emissions, noise pollution, water pollution, littering, soil pollution)