As many as 13 million deaths could be prevented every year by making our environments healthier. Women and children make up a disproportionate number of those at risk and the lives of four million children under five years could be saved by addressing environmental risks. In the least developed countries, one third of deaths and disease are a direct result of modifiable environmental factors, that is, environmental factors that are realistically amenable to change using available technologies, policies and preventative and public health measures”. World Health Organisation, 10 Facts on Preventing Disease through Healthy Environments 1 1 Ref: http://www.who.int/features/factfiles/environmental_health/en/index.html. - iii -