Reference
https://www.academia.edu/63269295/What_Is_a_Green_City
https://sdgs.un.org/goals/goal11
https://international.kk.dk/about-copenhagen/liveable-green-city/2025-climate-plan
https://vancouver.ca/green-vancouver/greenest-city-action-plan.aspx
https://www.tourismthailand.org/Attraction/chao-phraya-sky-park
https://www.climatechampions.net/news/the-greening-of-bangkok
