4605
A UN report warns extreme weather events that historically happened about once in 100 years could hit coastal cities yearly by 2050 . Cities need to prepare now . {{URL}} via {@Bloomberg CityLab@}
 UN, extreme weather, coastal cities, Bloomberg CityLab
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: group, creative work, person, event, product, location, corporation 
Text: {0} 
Answer:
 UN, extreme weather, coastal cities, Bloomberg CityLab