What is your water footprint?

We need to spend more time thinking about this! It takes 2,400 liters of water to make one hamburger! Watch this Reuters video:

The concept of 'virtual water' reveals the shocking amounts contained in the products we consume.

The concept can build awareness in consumers of their ''hidden'' water usage, or that contained in the whole production chain of goods and services.

The scientist behind the innovation, Professor Tony Allan, has personally reduced his virtual water usage by becoming a vegetarian!