- 記録保持者
- Australasian Dark Sky Alliance
- 内容
- 4283 people
- 場所
- オーストラリア (Global online - Australia, United Kingdom)
- 達成日
The most users to take an online environmental sustainability lesson in 24 hours is 4283 people, achieved by Australasian Dark Sky Alliance (Australia) on 21 June 2020.
The lesson subject focused on light pollution and its effect on the environment.
