Cities depend heavily on other cities and regions to provide them with indispensable services such as food, water and energy and the infrastructure to deliver them. Ecosystem services from surrounding regions provide fresh air, store or drain flood water as well as drinking water
Cities depend heavily on other cities and regions to provide them with indispensable services such as food, water and energy and the infrastructure to deliver them. Ecosystem services from surrounding regions provide fresh air, store or drain flood water as well as drinking water
['Urban populations']