Earth Hour: Switching off lights to highlight climate change BBC NewsLights switched off across planet from Samoa to Buckingham Palace for Earth Hour The IndependentEarth Hour: landmarks go dark to highlight plight of planet The GuardianEarth Hour 2019: What is Earth Hour? What time is it in the UK? Express.co.ukEarth Hour: Iconic landmarks across the world switch off lights to highlight climate change The IndependentView full coverage on Google News