Today, the flush toilet probably stands as one of the most unsustainable innovations in human history.

Think about it. Why would we want to increase the liquid volume of a potentially harmful substance – human waste? Most of the waste water that flush toilets create – more than 80% worldwide – ends up going directly back into the environment. No treatment, no use, just a lot of open sewers.

Read more about why the world needs more toilets – but not ones that flush – in the UNU-FLORES article here.

Photo credit: Tom Raftery via / CC BY-NC-SA