Women in developing countries are burdened by the lack of access to proper toilets in their homes, communities, schools and public spaces.
Existing toilets aren't a good fit for parts of sub-Saharan Africa because many areas lack water and there's often no proper plumbing.
Politicians on the right surely wipe with their left hand; and vice versa?
Sit v squat – the big public toilet stand-off.
What it's like trying to use a public loo when they aren't designed for you.
Do canal boats have toilets? Yes, and they're greener than your average bog.
Just because something is advertised as 'flushable' doesn't mean you should put it in your toilet.
If you want to live like a local when on holiday, you should defecate like one.
More than half of the global population do not have safe sanitation. What is the best way to go about changing this?
Opening the minds of worried new parents to other ways of raising children may assuage fears that if they fail to 'do the right thing,' their children will be doomed.
Incontinence is frighteningly common.
Cultural, social and environmental factors all matter if India wants to succeed in its goal to boost sanitation.
You flush the toilet. Down it goes. What happens after that? Clancy, age four, wants to know.
Modern sewerage infrastructure, exported from Britain to the globe, is entirely dependent on water. In a world of growing climate extremes, it's time to look beyond this colonial legacy.
The invention of the flush toilet was probably one of the most unsustainable innovations in human history.
Community participation is vital to achieve the Sustainable Development Goals. But at the moment it often comes too little, too late.
Expecting the rest of the world to adopt expensive, centralized sewage treatments systems common in the U.S. is not realistic.
Indian Prime Minister Narendra Modi wants to bring 1.5 million toilets to the 600 million Indians without access by 2019. If he fails that could prove dangerous in an election year.
While everyone needs access to proper sanitation to stay healthy, for girls and women it is also an issue of safety and equal participation in society.
More than two billion people lack access to decent sanitation. Innovative sanitation technologies can bring toilets into the 21st century with benefits for the developing and developed world.