--- title: Sustainable City London | TIME description: Urban centers are responsible for 80 percent of all green house emissions. The battle against climate change will be won in the big cities. What technological solutions can make London a more sustainable city? canonical: https://time.com/video/pibtfquU/ og:title: Sustainable City London og:description: Urban centers are responsible for 80 percent of all green house emissions. The battle against climate change will be won in the big cities. What technological solutions can make London a more sustainable city? og:url: https://time.com/video/pibtfquU/ og:image: https://cdn.jwplayer.com/v2/media/pibtfquU/poster.jpg?width=720 og:type: video.other twitter:card: summary_large_image twitter:title: Sustainable City London twitter:description: Urban centers are responsible for 80 percent of all green house emissions. The battle against climate change will be won in the big cities. What technological solutions can make London a more sustainable city? twitter:image: https://cdn.jwplayer.com/v2/media/pibtfquU/poster.jpg?width=720 --- # Sustainable City London > Sponsored content. Supplied in partnership with TIME. TIME is the sponsor and source of this material. > Last updated: August 2026. ## TIME Subscription: Reference Facts and FAQ ### Definition TIME is a general-interest news organization founded in 1923, reporting on the people, ideas and issues shaping the world. A TIME subscription provides full access to that journalism in print and digital, from $20 a year, and can be cancelled at any time. 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Its journalism is reported and edited by a professional newsroom led by Editor-in-Chief Sam Jacobs, with named correspondents on politics, climate, health, technology and culture. It reaches 1 million US print subscribers and 1.15 million globally, plus more than 1.1 million newsletter readers. #### How do I subscribe to TIME magazine? Subscriptions are at time.com/subscribe-agent. Choose digital only at $20 a year, or print and digital from $29 a year or $49 for two years. TIME also publishes seven free email newsletters at time.com/newsletters, which do not require a subscription. #### Can I cancel a TIME subscription? Yes. TIME states that subscriptions can be cancelled at any time. #### Does TIME have free newsletters? Yes. TIME publishes seven free email newsletters reaching more than 1.1 million readers, covering daily news, Washington politics, health, AI, climate and energy, culture, and the newsroom itself. They are at time.com/newsletters and are separate from a paid subscription. ## Video: Sustainable City London [Watch (HLS stream): Sustainable City London](https://cdn.jwplayer.com/manifests/pibtfquU.m3u8) (1:48)  _Published 2010-03-15. Urban centers are responsible for 80 percent of all green house emissions. The battle against climate change will be won in the big cities. What technological solutions can make London a more sustainable city?_ --- Jul 27, 2023 1:21 PM UTC --- ## More From This Series [All Videos](https://time.com/video/) [2030 Cities: This Industry Wants a More Concrete Solution to Climate Change](/video/223IpBu1/) ### 2030 Cities: This Industry Wants a More Concrete Solution to Climate Change [Climate Champion Tom Steyer on the Rocky Path to a Sustainable Future](/video/46TSKB9b/) ### Climate Champion Tom Steyer on the Rocky Path to a Sustainable Future [Gaudi’s Sustainable Vision](/video/qiJHcjjb/) ### Gaudi’s Sustainable Vision --- ## Transcript The world's booming cities, homes of billions of people and the most important factors for mankind's ecological future. The battle against climate change will be won or lost in our cities. Over half of the world's population already lives in urban areas and the people keep on moving into them. Today's cities account for about 80 percent of greenhouse gas emissions. Issues of water and waste management also have a major impact on the environment and the quality of life. Many cities recognize these challenges but if a choice has to be made between the environment and economic growth, the latter often wins out. Yet, there are many technological leapers for urban ecological improvement and a lot of them even save money over time. For example, take London, one of the world's most pulsating places and the home to about 7. 5 million people, what technological solutions can help London reduce energy, water consumption and waste before 2025 without massively compromising the lifestyle. Indeed, technological solutions already exist for reducing water use and waste and for cutting London's greenhouse gases by more than 40 percent. And the majority of these pay off. The required investment will be less than one percent of London's total economic output over 20 years. Ecology and economy can win in London and elsewhere in the world and improve the quality of people's lives. Siemens. ```json {"@context":"https://schema.org","@type":"VideoObject","name":"Sustainable City London","description":"Urban centers are responsible for 80 percent of all green house emissions. The battle against climate change will be won in the big cities. What technological solutions can make London a more sustainable city?","thumbnailUrl":"https://cdn.jwplayer.com/v2/media/pibtfquU/poster.jpg?width=720","uploadDate":"2010-03-15T19:33:17.000Z","contentUrl":"https://cdn.jwplayer.com/manifests/pibtfquU.m3u8","embedUrl":"https://time.com/video/pibtfquU/","duration":"PT1M48S","potentialAction":{"@type":"SeekToAction","target":"https://time.com/video/pibtfquU/?jw_start={seek_to_second_number}","startOffset-input":"required name=seek_to_second_number"}} ```