The world's local bankA shower uses a third of the water of a bath. The annual savings for a family of four could be as much as 240,000 litres (63,000 US gallons).
People around the world use enough plastic bags to carpet the entire planet every six months.
Simple heat conservation measures such as loft or floor insulation can recoup their costs in as little as two years.
Green or renewable energy offered by most energy suppliers helps to tackle climate change.