Abstract Water is key to keeping urban areas safe and healthy for humans and hence safe sanitation and waste water treatment is promoted by the United Nations Sustainable Development Goals. We show that emissions from existing state-of-the-art water technologies are problematic from a Planetary Boundaries (PBs) perspective. The magnitude of the climate change impact in relation to the PB based normalization is much higher than for any other PB. The current paradigm for urban water management needs a radical change for society to be served while emissions are reduced to a level that complies with the Planetary Boundaries.

中文翻译：

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城市水资源管理：能否在行星边界内实现联合国可持续发展目标 6？

摘要 水是保持城市地区人类安全和健康的关键，因此联合国可持续发展目标提倡安全卫生和废水处理。我们表明，从行星边界 (PB) 的角度来看，现有最先进水技术的排放是有问题的。与基于 PB 的标准化相关的气候变化影响的程度远高于任何其他 PB。当前的城市水资源管理范式需要彻底改变才能为社会服务，同时将排放量减少到符合行星边界的水平。