C40 Cities Climate Leadership Group

 https://en.wikipedia.org/wiki/C40_Cities_Climate_Leadership_Group 

https://www.c40reinventingcities.org/

https://en.wikipedia.org/wiki/C40_Cities_Climate_Leadership_Group#History 

https://www.c40.org/cities/

https://en.wikipedia.org/wiki/C40_Cities_Climate_Leadership_Group#Membership 

https://www.c40knowledgehub.org/s/topic/0TO1Q0000001ldhWAA/mass-public-transit?language=en_US 

https://www.c40.org/cities/vancouver/

https://www.c40.org/cities/seattle/

https://www.c40.org/cities/portland/