The Earth Hour celebration has been held annually for over 10 years.
Several well-known landmarks around the world were blacked out again on Saturday night for an hour in honor of the Earth Hour event organized by the Environment Agency (WWF).
In addition to the cities, numerous private people and various organizations also took part in the rapture. This year, the theme of the event was making climate promises.
The event, which has been running since 2007, aims to raise awareness of climate change.
Source site www.is.fi