Add Yahoo as a preferred source to see more of our stories on Google. FILE PHOTO: General view of the Burj Khalifa and the downtown skyline in Dubai, United Arab Emirates, September 30, 2021.

WASHINGTON, June 18 (Reuters) - While a city is not a living organism, it behaves very much like one. Its metabolic processes may be manifested in growth spurts, metamorphosis over time and even decay ...