This year at Glastonbury, WaterAid's African-style pit latrines in Kings Meadow (aka the Stone Circle Field) will be replaced with composting loos provided by Natural Events.

Used in some of WaterAid's projects these ingenious loos transform human waste into safe, effective fertiliser which boost crop yield and, therefore, a poor community's income. For more info, watch the film above. You can also visit www.wateraid.org/glasto to find out more about what the charity will be doing at the Festival.