Cyclists gather at Bundaran Hotel Indonesia Fountain to take part in Earth Hour event in Jakarta, Indonesia, March 30, 2019. "Earth Hour" is a global initiative first launched by World Wildlife Fund (WWF) in 2007 and soon became a popular movement worldwide. From 8:30 to 9:30 pm on every last Saturday of March, individuals, communities, enterprises and government departments around the globe are encouraged to turn off their lights for an hour, with the purpose of inspiring reflections and actions regarding environmental issues. (Xinhua/Veri Sanovri)