Horrified by an image of a Cambodian child being bathed in laundry detergent, American student Samir Lakhani was determined to do something.
He found his answer when he realised that many Siem Reap hotels throw away a huge amount of soap that is scarcely used by guests.
Lakhani got the idea of recycling this soap and redistributing it to rural populations that cannot afford expensive soap.
With the management of local hotels on board, in 2014 he launched his NGO, Eco-Soap Bank.
Full story at The Observers.