Developing world: A collective term used to describe the world’s developing counties: countries where average income is very low and most of the population are considered very poor. Other terms used include low-income countries, majority world, the South or the Third World.
Famine: a serious shortage of food which may result in extreme hunger, starvation and death.
Hydroelectricity: Electricity produced from the energy of flowing water. Water flows through a turbine, spinning the blades, which rotates a generator, producing electricity. Such electricity usually involves damming a river so that there is a large amount of water that can fall to spin the turbine blades.
Hygiene: keeping healthy through practices such as washing hands after using a toilet and before handling food.
Malnutrition: Not having enough nourishing food with the adequate amounts of protein, vitamins, minerals, calories, etc. to support growth and development.
Natural disaster: An event which has harmful effects on people and the environment and is caused by natural forces rather than by human action. Examples include floods, drought, earthquakes, volcanic eruptions and hurricanes. Some would argue that human activity can make natural disasters worse, e.g. cutting down tress can make increase floods and mudslides and climate change may result in more severe storms.
Sanitation: the safe and hygienic removal of waste including human waste, through proper toilet and sewage systems for example, as well as protecting health through hygienic measures.
Water-related diseases: Illnesses, diseases and infections which people catch through contaminated water. There are many different diseases and illnesses but diarrhoea accounts for 90% of all water-related diseases. The effects of water-related diseases are devastating: every 15 seconds, a child dies; water-related diseases are the leading cause of death for children under five, and at any given time, half of the world’s hospital beds are occupied by patients suffering from a water-related disease. See the following links for more information on water-related diseases: