Lights out: idsgn (a design blog)
Earth Hour switches lights off around the world - BBC News
Earth Hour: A Collaboration Lesson -
Earth Hour: Why people across the world are turning off their lights tonight | CNN
Cities worldwide dim lights to mark Earth Hour
Earth Hour': Here's why people across the globe will switch off lights at 8.30 pm today | Science
Rockville: City to Participate in “Lights Out” Earth Hour on March 26 - The MoCo Show
Lights out in Hong Kong, other world cities for Earth Hour | South China Morning Post
Lights out in Sydney for Earth Hour conservation campaign
In photos: World's landmarks turn off lights for Earth Hour
Lights Out Houston + Earth Hour - Spring Branch Management District
Lights Out for Earth Hour, March 26 - Emerson Today
In Pics: Lights out! World cities go dark to mark Earth Hour 2018
Earth Hour 2021: Turn your lights off for an hour this Saturday | Daily Sabah
Lights go out at landmarks around the world to mark Earth Hour | South China Morning Post
Earth Hour: millions prepare to switch off the lights | Earth Hour | The Guardian
Earth Hour: Lights out at 8:30pm, time to conserve energy. All you need to know - Hindustan Times
lights out – RitiRiwaz
Lights out as millions around the world mark Earth Hour
Samsung Electronics Offices Turn Off Lights to Transform Darkness into the Light of Hope – Samsung Global Newsroom
