This video shows areas around the world turning off their lights for Earth Hour.
Shown in the video are Bangkok, Beijing, Kuala Lumpur, Jakarta, Moscow, Doha and Zagreb.
More top news
Man City remain five points behind Chelsea in the Premier League title race after a 1-1 draw at Stamford Bridge
Five NHS trusts in the Midlands have come under fire after it emerged bosses were sitting on more than £134 million of spare cash.
A factory worker's faithful friends saved his life by lying with him to keep him warm when he fell into a diabetic coma in the freezing cold