Passive water harvesting technologies offer clear advantages in terms of power use, but are often limited in output. A new design aims to push them to their limits.

A new gadget seeking to re-calibrate the toilet habits of Americans and help reduce wasteful and polluting production and consumption, was recently launched in the US.

In our daily lives, we may just turn the shower on and flush the toilet down – and not think about the journey of the water to our shower or from our toilet.  However, all of us know that terrible plight when the tap goes dry.