Watch: Iconic global landmarks turn off lights for Earth Hour

Watch: Iconic global landmarks turn off lights for Earth Hour Global landmarks including the Eiffel Tower in Paris and Sagrada Família Basilica in Barcelona switched off their lights for an hour at 20:30 local time on Saturday night to mark Earth Hour. The global event, organised by the World Wide Fund for Nature, takes place every year to raise environmental awareness. It aims to encourage people to turn off their lights for 60 minutes and the event first started in Sydney, Australia, in 2007. Video journalist: Emaan Warraich 2 days ago Environment Share Save Watch timelapse of Artemis II rocket rollout to launch pad The 98m tall Space Launch System (SLS) and Orion spacecraft made a four mile journey from their assembly building to Pad 39B at the Kennedy Space Center in Florida. Science & Environment Tenerife hit by snow as Storm Therese batters Canary Islands Tenerife hit by snow as Storm Therese batters Canary Islands Science & Environment What happens in space during a medical emergency? BBC science correspondent Pallab Ghosh explains what happens if an astronaut gets ill in space. Science & Environment Watch: Stunning celestial events that lit up the skies in 2025 From meteor showers to supermoons, here are some of the sights that wowed stargazers this year. …