Today, more and more Chinese people – 64% at last count – are gaining access to “improved” sanitation. Though polluting five gallons of purified drinking water with every flush may be an improvement over spreading raw human excrement a.k.a. “night soil” directly on the fields – though even that is disputable – there is definitely a better way to go. If you really want to improve your sanitation, don’t pony up billions of dollars for porcelain thrones, pipes, septic tanks and sewage treatment facilities. Instead, spend $25 per household building a compost collection toilet. You can find the plans in Joe Jenkins’ Humanure Handbook.