Today around 783 million people do not have access to safe drinking water and the number is projected to increase. Meat production requires a relatively high level of energy, cereal, [ and water input, and agriculture accounts for 70% of the I global water withdrawal. The Water Footprint Network (2013) i estimates the global average water footprint at 15,500 litres of P water for every kilogramme (kg) of beef, 5,000 litres of water 0 for a kg of cheese, 3,900 litres for a kg of chicken meat, and 1,300 litres of water per kg of barley. Building construction requires resources such as sand, wood and metals. Many of the materials require pre processing and some of them are sourced through mining. The mining process alone causes biodiversity loss, deforestation, emissions of GHGs and use of unhealthy chemicals.