(Transcription of audio on video)
Industrialised countries have made significant improvements to their energy and resource efficiency, but some of the gain has been offset by more widespread consumption. Some of this is to do with our food production.
It takes approximately 1,000 litres of water to produce 1 kg of wheat, over two and a half times that to produce 1 kg of eggs, and a massive 13 and a half times that amount of water to produce 1 kg of beef.
If the entire global population were to adopt a western-style diet, about 75% more water would be needed for food production.
Source: SOER 2005