Chapter NineTool 7
Rainwater Harvesting and Water Re-Use
Water scarcity is a major problem today, with around 1.7 billion people living in places with a serious scarcity.12 This number will only rise as populations grow, while negative climate change reduces access to water. For climates with more rainfall, the value of storing rainwater becomes clear when trying to build an environment that revolves around having zero-carbon emissions. It is simply madness to be transporting filtering and treating water simply to flush it down the toilet when gravity-fed rainwater could do the job just as well without needing additional energy. The need to use water sensibly, and to save as much as possible, becomes ever more obvious, and decentralisation is ...
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