Water holds the biosphere together - it links many environmental issues - pollution, biodiversity, food, energy, climate regulation, and many more. How well we use, manage, waste, or pollute water can determine the sustainability of our environment. Water also connects many issues in urban systems.

We’re all about water
In the face of water shortages, cities are increasingly taking responsibility for water management. Some cities link water systems with regional nature conservation, for example by protecting forests, wetlands, and catchment areas vital to local water supply and biodiversity. In other cities, water treatment is integrated with urban farming, to recycle nutrients like phosphorus, and with the energy system to produce biogas. Cities increasingly engage in rainwater collection, recycling, and desalination. The vision is cities where water is essentially re-circulated.



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