Editing Light pollution (section)

===Dark sky reserves===
{{main|Dark-sky preserve}}
In 2001 International Dark Sky Places Program was founded in order to encourage communities, parks and protected areas around the world to preserve and protect dark sites through responsible lighting policies and public education. As of January 2022, there are 195 certified International Dark Sky Places in the world.<ref>{{Cite web|url=https://www.darksky.org/our-work/conservation/idsp/|title=International Dark Sky Places|access-date=2022-04-18|archive-date=2022-04-20|archive-url=https://web.archive.org/web/20220420170943/https://www.darksky.org/our-work/conservation/idsp/|url-status=live}}</ref> For example, in 2016 [[China]] launched its first dark sky reserve in the [[Tibet Autonomous Region]]'s [[Ngari Prefecture]] which covers an area of 2,500 square kilometers. Such areas are important for astronomical observation.<ref>{{Cite web|url=https://www.chinadaily.com.cn/china/2016-06/21/content_25791823.htm|title=China's first dark sky reserve launched in Tibet[1]- Chinadaily.com.cn|website=www.chinadaily.com.cn|access-date=2022-04-18|archive-date=2022-04-18|archive-url=https://web.archive.org/web/20220418173418/https://www.chinadaily.com.cn/china/2016-06/21/content_25791823.htm|url-status=live}}</ref>