The only waste from unfinished soda is the syrup. You'd have to clean the water after you peed it out anyway, and water gets recycled in most places. Real scar

The only waste from unfinished soda is the syrup. You'd have to clean the water after you peed it out anyway, and water gets recycled in most places. Real scarcity is a cause for moderation, and Americans aren't always good at that, but clean water is a highly renewable resource in the US (except in areas where the system is corrupt or there's tons of wasteful agriculture, neither of which is fixed by drinking less).