Water (catching it, saving it, treating it, using less of it, reusing it)

http://www.builditsolar.com/Projects/Water/Water.htm

DIY projects to harvest rainwater, reduce water use, and reuse water. I suppose that the only thing we waste more of than energy is water, and the consequences are probably just as bad -- maybe worse.  Here are some practical ways to get started changing that. Rainwater Harvesting References Rain Water Harvest Systems... Fog Harvesting Conserving Water Greywater Reuse Solar Water Distillation (Solar Stills) Advanced Toilets Efficient Plant Watering Natural Swimming Pools Rain Water Gardens Random Water Ideas