Rainwater is free. As w ith w ind and solar-powered energy, utilising rainwater is one way to help protect the environment in a sustainable way. If we were to catch all the rain that falls on the roofs o f our hom es, it would provide up to 8 0 % o f current annual domestic water consumption.

Namib desert, Namibia. From 365 Ways to Save the Earth by Philippe Bourseiller, published by Abrams, UK, 2005

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