Does turning off lights globally during "Earth Hour" reduce global warming, and what is the ruling on participating in this act?
Source: FtawySummary from Ftawy's records · added here Sep 2, 2026
The permissibility of participating in what is known as "Earth Hour" needs to be verified by specialists. As for the ruling, the basic principle is permissibility, because it falls under customs, and the basic principle concerning customs is permissibility unless there is evidence of prohibition. There is nothing here that prohibits it, due to Ibn Taymiyyah's statement: "The basic principle concerning customs is clemency (permissibility); nothing is forbidden except what Allah has forbidden."
Summary from Ftawy's records · added here
Reviewed by El Fatwa's sharia committee.
Read the full answer on Ftawyhttps://ftawy.com/en/questions/135630
Where this answer came from
- Source platform
- Ftawy
- Original fatwa ID
- 135630
- Added here
- . This is when the answer was added to El Fatwa, not the fatwa's date.
- Text
- Summary from Ftawy's records, reviewed by El Fatwa's sharia committee.
- Read the full ruling
- Read the full answer on Ftawy