On the TV: Story of Science Tues 27th BBC2 9pm http://www.bbc.co.uk/programmes/b00s89td

How much water do you think you use in a day? Find out at http://news.bbc.co.uk/1/hi/sci/tech/8628832.stm

You may think you do not use a lot but when you consider that to make 1 kilogram of bread 440 litres of water is used, it may make you think again.
Check out the water crisis story.

There are a few good programmes out there at the moment. You can find them on BBC iplayer.
Bang goes the Theory
Wonders of the Solar System
Chemistry: A Volatile History
Richard Hammond’s Invisible World