You may be surprised to hear that treating water, pumping it to households and taking away waste water uses plenty of energy - around 1% of UK CO2 emissions - and that household water heating is responsible for 5% of UK CO2 emissions.
Reducing each shower length by one minute could save a family of four around £100 a year on their water and energy bills - even more with a water efficient showerhead.
Washing pots under a running tap costs you 40p a day, while using a full load in your dishwasher costs just 8p - even less with an A+ rated application.
So it make sense to be water efficient - it'll save you money off you water bill (if you are metered) and your gas and electricity bills too. Return to Energy section.