![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/OL3VBEGBH7R5MXTP4UUDVLSCFQ.jpg?smart=true&auth=c627eb42d0574364ef2793cc20e17acf162bb99364d280fa94485b0e873b3124&width=400&height=225)
Malaysia's landmark Petronas Twin Towers (L) and KL Tower (R) are illuminated before their lights are turned off to mark the Earth Hour environmental campaign in Kuala Lumpur. AFP
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Activists stand in front of the Brandenburg Gate, prior the switch off of the illumination, to mark Earth Hour in Berlin, Germany. EPA
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Museum of the Future in Dubai goes lights off during Earth Hour. Leslie Pableo for The National
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Acropolis hill with floodlights switched off during 'Earth Hour' in Athens, Greece. EPA
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A view of the Sydney Opera House after lights were switched off. Reuters
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Paris' Eiffel Tower with the lights off during the Earth Hour environmental campaign. AFP
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The Puente de la Mujer bridge is pictured with its lights turned off during the Earth Hour environmental campaign at Puerto Madero neighborhood in Buenos Aires. AFP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/KS57RYCC4TBYRI3WZ3GT6UQ75Q.jpg?smart=true&auth=6df16bea55f1ffb01ddb85c35739e0d98187724544d43d51bdb6718dbaf80522&width=400&height=225)
A view shows St Alexander Nevsky cathedral as the lights are being turned off for Earth Hour, in Sofia, Bulgaria. Reuters
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A drone view shows the ruins of the ancient Parthenon temple atop the Acropolis hill with the lights turned off during Earth Hour, in Athens, Greece. Reuters
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A large advertising screen in Piccadilly Circus is turned off to mark Earth Hour, London, Britain. Reuters
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/P25FEBMUZTU64KINMU7OFRLVKU.jpg?smart=true&auth=1c026b2310fe7ae37b7a68cb35a857e4288efe2dc40fac623e1c5f9a2449d399&width=400&height=225)
The Palace of Culture in Warsaw switched off to mark the Earth Hour environmental campaign organized by the World Wild Fund for Nature . AFP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/R7TTI5BJA3JCYVJZ5L4SBHR4JQ.jpg?smart=true&auth=e25f8dc67081b56b8fbc3f33370aa561302ca0adb331df28330d83f7a106a31a&width=400&height=225)
The Cologne Cathedral, a UNESCO World Heritage Site, next to the Hohenzollern railway bridge across the river Rhine, is partly illuminated during Earth Hour in Cologne, Germany, March 23, 2024. REUTERS / Jana Rodenbusch
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Lights at the Colosseum are switched off for the Earth Hour environmental campaign in Rome, Italy. EPA
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A general view of Azadi (Freedom) tower after its light is switched off during the world Earth Hour in Tehran, Iran. EPA
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/PJ6GBUYBID3X6PARVWMMHUL3RQ.jpg?smart=true&auth=cc20b4d8b1d04660318d76ea81aac140691ba4fc39bb282e8b41a8116e9175ce&width=400&height=225)
The Telangana State Secretariat building is pictured with its lights switched off during the Earth Hour environmental campaign in Hyderabad. AFP
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The Prambanan Temple, one of the largest Hindu temples in Southeast Asia and a UNESCO World Heritage Site, is pictured with its lights off during the Earth Hour environmental campaign in Yogyakarta. AFP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/MANAV53W2EMVDPJISJ4DML2WJU.jpg?smart=true&auth=c04ae896ea41e1a085b717d56d8fefebe27daf741d80a6357e1a24c57226a76a&width=400&height=225)
A man walks past the Phoenix Center after its lights are turned off for the Earth Hour environmental campaign in Beijing. AFP
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The shadows of people are casted on a wall with the message 'Give an Hour for Earth' at a gathering to mark the Earth Hour environmental campaign in Manila. AFP
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The landmark building Taipei 101 is seen with its lights switched off to mark the Earth Hour environmental campaign in Taipei. AFP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/OL3VBEGBH7R5MXTP4UUDVLSCFQ.jpg?smart=true&auth=c627eb42d0574364ef2793cc20e17acf162bb99364d280fa94485b0e873b3124&width=400&height=225)
Malaysia's landmark Petronas Twin Towers (L) and KL Tower (R) are illuminated before their lights are turned off to mark the Earth Hour environmental campaign in Kuala Lumpur. AFP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/PEVMC47MZ6HHD3PBOXRCPZBVOU.jpg?smart=true&auth=b6339f632506e76a5a82c83d6b56a531133673ae34dac7812f3f3db4f0550616&width=400&height=225)
Activists stand in front of the Brandenburg Gate, prior the switch off of the illumination, to mark Earth Hour in Berlin, Germany. EPA
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/Q44MW7Y6QJGLLPUPRG54MORXKY.jpg?smart=true&auth=e6b33689c62a935a039334d09642feb04e57a74adcbb9d0dc466368fe9e032be&width=400&height=225)
Museum of the Future in Dubai goes lights off during Earth Hour. Leslie Pableo for The National
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/TMJPDBWIXYBHIHXV4LIJNZ6Q3M.jpg?smart=true&auth=ea5da6e293b3bbcb91b769104279f5ec3fc2b9b4031d2099e8300bb1fe96f04a&width=400&height=225)
Acropolis hill with floodlights switched off during 'Earth Hour' in Athens, Greece. EPA
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/BD4AUQFM3M7VHPHVRLLEEPQJ3I.jpg?smart=true&auth=0d90f5efa24abbfb8bf8e295465552c8d03454d8bc380ed8ae2dfdcfec5f9c27&width=400&height=225)
A view of the Sydney Opera House after lights were switched off. Reuters
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/45L6PFZTHI64DKOTNFXMYGOK7U.jpg?smart=true&auth=1ac82b5323c73b613f5e41084af71cb2db2122628fcf7dcc8edd8c8aa6043115&width=400&height=225)
Paris' Eiffel Tower with the lights off during the Earth Hour environmental campaign. AFP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/6KX3AJWNUXJ7JXZOR6PSPW4UFI.jpg?smart=true&auth=d989aa83cf6b365d357258255f743bcf1ef432b5ce90b5e296e6079b25051a75&width=400&height=225)
The Puente de la Mujer bridge is pictured with its lights turned off during the Earth Hour environmental campaign at Puerto Madero neighborhood in Buenos Aires. AFP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/KS57RYCC4TBYRI3WZ3GT6UQ75Q.jpg?smart=true&auth=6df16bea55f1ffb01ddb85c35739e0d98187724544d43d51bdb6718dbaf80522&width=400&height=225)
A view shows St Alexander Nevsky cathedral as the lights are being turned off for Earth Hour, in Sofia, Bulgaria. Reuters
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/EIRJEE3X2UGJTWBSLNLUGDOBLU.jpg?smart=true&auth=7f1583acd643e7e478365128d013440a82b0c39e298835fd9c19ef2626c6601f&width=400&height=225)
A drone view shows the ruins of the ancient Parthenon temple atop the Acropolis hill with the lights turned off during Earth Hour, in Athens, Greece. Reuters
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/PY6HSRQJSSRONUTIEFR37SOADM.jpg?smart=true&auth=3e683077e88bcc993668c04fcd6abd865be70629f66342aa37fff9e8499e75e7&width=400&height=225)
A large advertising screen in Piccadilly Circus is turned off to mark Earth Hour, London, Britain. Reuters
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/P25FEBMUZTU64KINMU7OFRLVKU.jpg?smart=true&auth=1c026b2310fe7ae37b7a68cb35a857e4288efe2dc40fac623e1c5f9a2449d399&width=400&height=225)
The Palace of Culture in Warsaw switched off to mark the Earth Hour environmental campaign organized by the World Wild Fund for Nature . AFP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/R7TTI5BJA3JCYVJZ5L4SBHR4JQ.jpg?smart=true&auth=e25f8dc67081b56b8fbc3f33370aa561302ca0adb331df28330d83f7a106a31a&width=400&height=225)
The Cologne Cathedral, a UNESCO World Heritage Site, next to the Hohenzollern railway bridge across the river Rhine, is partly illuminated during Earth Hour in Cologne, Germany, March 23, 2024. REUTERS / Jana Rodenbusch
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/5WAVRJ2VIKABYEEKPX5ZBSNMWI.jpg?smart=true&auth=101b0055f1d6878a1f0d29719ef1d0ab8e150517f20ead225bc36882541338cf&width=400&height=225)
Lights at the Colosseum are switched off for the Earth Hour environmental campaign in Rome, Italy. EPA
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/NGURECEB4XIPTIDWG5ZMEVTB6E.jpg?smart=true&auth=d0e717ab88826426d0e479ef207b5358ff7187df635ea82c6cc5280057084018&width=400&height=225)
A general view of Azadi (Freedom) tower after its light is switched off during the world Earth Hour in Tehran, Iran. EPA
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/PJ6GBUYBID3X6PARVWMMHUL3RQ.jpg?smart=true&auth=cc20b4d8b1d04660318d76ea81aac140691ba4fc39bb282e8b41a8116e9175ce&width=400&height=225)
The Telangana State Secretariat building is pictured with its lights switched off during the Earth Hour environmental campaign in Hyderabad. AFP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/FKMHE6IHCV3RJKPL2GS4XPDAFI.jpg?smart=true&auth=746b30d1432110f21df27440003e46f34375ff2c1dfcc9f766a9c700250b2d94&width=400&height=225)
The Prambanan Temple, one of the largest Hindu temples in Southeast Asia and a UNESCO World Heritage Site, is pictured with its lights off during the Earth Hour environmental campaign in Yogyakarta. AFP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/MANAV53W2EMVDPJISJ4DML2WJU.jpg?smart=true&auth=c04ae896ea41e1a085b717d56d8fefebe27daf741d80a6357e1a24c57226a76a&width=400&height=225)
A man walks past the Phoenix Center after its lights are turned off for the Earth Hour environmental campaign in Beijing. AFP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/RIVSINPTMTZQLEVO7T4TMGE2ZQ.jpg?smart=true&auth=192b48989b0ea43d7f0d41097550ccbd366f76e6bbc28f80dff99d601f92ee40&width=400&height=225)
The shadows of people are casted on a wall with the message 'Give an Hour for Earth' at a gathering to mark the Earth Hour environmental campaign in Manila. AFP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/HVOIMQAWOICIDZHNQDSJAO32WM.jpg?smart=true&auth=25a08dfab1fa6810becb6bdf58f3ec1cfe6d9397205c7d2a589b174f0edcedc5&width=400&height=225)
The landmark building Taipei 101 is seen with its lights switched off to mark the Earth Hour environmental campaign in Taipei. AFP
![](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/OL3VBEGBH7R5MXTP4UUDVLSCFQ.jpg?smart=true&auth=c627eb42d0574364ef2793cc20e17acf162bb99364d280fa94485b0e873b3124&width=400&height=225)
Malaysia's landmark Petronas Twin Towers (L) and KL Tower (R) are illuminated before their lights are turned off to mark the Earth Hour environmental campaign in Kuala Lumpur. AFP