That is logic that works at a local and individual level but breaks down at a global and economic level. Think of it like fish stocks. A small pond can be man

That is logic that works at a local and individual level but breaks down at a global and economic level. Think of it like fish stocks. A small pond can be managed by an individual to make sure that stock levels are renewable. You are careful to not over-harvest. But an individual fishing boat at sea does not have the same control, because other boats are fishing the same waters. The fish are only renewable if there is collective effort to ensure that.