p>San Fransisco’s push for low-flush toilets has created a serious problem. There is not enough water flowing through the system, and so the back up has created a gigantic, city-wide stink. This can be fixed but only by pouring massive, unthinkable amounts of bleach into the sewer system, a prospect that has many people very alarmed. It’s the old story: intervention begets intervention. Perhaps we should think a bit less about “saving” water and start thinking about saving civilization.