Water smart cities are increasing their use of irrigation and misting to cope with extreme heat and drought. This is being enabled by widespread use of rainwater tanks, stormwater capture and storage systems, and recycled sewage wastewater to irrigate street trees as well as private and public green spaces. These alternative water resources provide new options for cities to better withstand and function under extreme summer heatwave conditions with little or no impact on drinking water supplies. Small‐scale approaches to evaporatively cool urban animals, vegetation habitat, and people are showing initial success. However, ongoing testing and modeling are needed to understand the impacts of scaling up these interventions and to evaluate their cost‐effectiveness. We describe current innovations in irrigation of Australian cities to help policy development in other countries and cities experiencing similar climates with episodic summer heatwaves.

中文翻译：

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在气候危机中，节水型城市增加灌溉量以提供凉爽的避难所

节水型城市正在增加使用灌溉和喷雾来应对极端高温和干旱。这可以通过广泛使用雨水箱，雨水收集和存储系统以及回收的污水来灌溉街道树木以及私人和公共绿地来实现。这些替代水资源为城市提供了新的选择，使其可以在极端的夏季热浪条件下更好地承受和运行，而对饮用水的供应几乎没有影响。通过小规模蒸发使城市动物，植被栖息地和人们凉爽的方法已显示出初步的成功。但是，需要进行持续的测试和建模，以了解扩大这些干预措施的影响并评估其成本效益。