-
https://www.srsdo.cuhk.edu.hk/images/content/events/wwf-earthhour-2022.png
Source: WWF - Hong Kong
26 March 2022 - 26 March 2022
-
https://www.srsdo.cuhk.edu.hk/images/content/events/wwf-earthhour-2021.jpg
Source: WWF - Hong Kong
27 March 2021 - 27 March 2021
-
https://www.cpso.cuhk.edu.hk/images/content/events/EH2020.jpg
Source: WWF - Hong Kong
28 March 2020 - 28 March 2020