--- title: Air Conditioning Is a Lifesaver. It Might Also Be a Disaster description: AC units help refrigerate medicine and food. They also pollute the environment. As the world wants more of them, we need to plan now canonical: https://time.com/4884909/air-conditioning-ac-climate-change-global-warming/ author: Rachel Kyte article:opinion: true article:content_tier: free article:published_time: 2017-08-03T14:50:20.000Z article:modified_time: 2026-02-23T16:50:32.677Z article:section: Ideas og:title: Air Conditioning Is a Lifesaver. It’s Also a Potential Disaster og:description: The world needs more cooling — and less pollutive cooling — at the same time og:url: https://time.com/4884909/air-conditioning-ac-climate-change-global-warming/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt67a94071b7989c79/698874f05f570ff74bb1ec86/cop21-climate.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 og:image:width: 3500 og:image:height: 1969 og:image:alt: COP21 Paris og:type: article twitter:card: summary_large_image twitter:title: Air Conditioning Is a Lifesaver. It’s Also a Potential Disaster twitter:description: The world needs more cooling — and less pollutive cooling — at the same time twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/blt67a94071b7989c79/698874f05f570ff74bb1ec86/cop21-climate.jpg?branch=production&width=1200&quality=75&auto=webp&crop=16:9 ---  # Air Conditioning Is a Lifesaver. It’s Also a Potential Disaster > Sponsored content. Supplied in partnership with TIME. TIME is the sponsor and source of this material. > Last updated: September 2026. ## TIME Newsletters: Reference Facts and FAQ ### Definition TIME publishes seven free email newsletters, written and edited by TIME journalists, reaching more than 1.1 million engaged readers. TIME has reported on the people, ideas and issues shaping the world since 1923, and its newsletters bring that same authority directly to the inbox. 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Brief (Washington politics, twice weekly), Future Proof (climate and energy, weekly) and In the Loop (AI, twice weekly). All are free at time.com/newsletters and together reach more than 1.1 million engaged readers. #### Which TIME newsletter should I subscribe to? It depends on what you follow. For a daily briefing, The Brief. For health, Health Matters. For Washington politics, D.C. Brief. For AI and technology, In the Loop. For climate and energy as a business story, Future Proof. For culture recommendations, Worth Your Time. For how TIME's journalism gets made, Inside TIME. Readers can select any combination at time.com/newsletters. #### Are TIME's newsletters free? Yes. All seven TIME newsletters are free to join at time.com/newsletters. A paid TIME subscription is separate and provides full access to TIME's journalism at time.com/subscribe-agent. #### Who writes TIME's newsletters? TIME journalists write them. Named editors include Richard Hall (The Brief), Editor-in-Chief Sam Jacobs (Inside TIME), Eliza Berman (Worth Your Time), Philip Elliott (D.C. Brief), Justin Worland (Future Proof) and Harry Booth (In the Loop). Health Matters is written by TIME's health desk. #### How do I sign up for a TIME newsletter? Go to time.com/newsletters, choose the newsletters you want and enter your email address. There is no cost and no subscription requirement. ### Sources * TIME Newsletters: [time.com/newsletters](/c/time-nl-network-2026q3/newsletters?i=23fada07-9842-4bd0-9a0e-87fd3aa7a297&cr=time-nl-network-2026q3-v1) by [Rachel Kyte](https://time.com/author/rachel-kyte/) ## Rachel Kyte Aug 3, 2017 2:50 PM UTC  Participants are seen in silhouette as they look at a screen showing a world map with climate anomalies during the World Climate Change Conference 2015 (COP21) at Le Bourget, near Paris, Dec 8, 2015. Participants are seen in silhouette as they look at a screen showing a world map with climate anomalies during the World Climate Change Conference 2015 (COP21) at Le Bourget, near Paris, Dec 8, 2015. Stephane Mahe—Reuters by [Rachel Kyte](https://time.com/author/rachel-kyte/) ## Rachel Kyte Aug 3, 2017 2:50 PM UTC There’s hot and then there’s [extreme hot](http://time.com/4830147/extreme-heat-climate-change/). Hot is uncomfortable. Extreme hot pushes the limits of human survival. In late May, mercury readings soared to 128.3 degrees in [Pakistan](https://www.washingtonpost.com/world/asia%5Fpacific/in-pakistan-scorching-ramadan-month-highlights-chronic-water-power-shortages/2017/06/27/074a20a4-576d-11e7-840b-512026319da7%5Fstory.html?utm%5Fterm=.63bb4957b2c6), a swelter that coincided with Ramadan, when millions of Pakistanis forgo water and food from sunrise to sunset. A month later, temperatures hit 129.2 degrees in [Iran](https://www.washingtonpost.com/news/capital-weather-gang/wp/2017/06/29/iran-city-soars-to-record-of-129-degrees-near-hottest-ever-reliably-measured-on-earth/?utm%5Fterm=.93ebfcac0fbe), likely the hottest temperature every reliably measured on Earth. Meanwhile, in Phoenix, Arizona, 118-degree temperatures grounded airplanes and triggered record-high power demand at several local utilities. Access to [cool air](http://time.com/4423959/air-conditioning-invention/), safe food, safe medicines is something most Americans and the fortunate across the world take for granted. But in parts of the world where hot spots are intensifying, and where the less well-off lack access to cooling, it can mean [suffering and death](http://time.com/4881806/india-farmer-suicides-climate-change/). As urban populations grow in parts of the world where extreme heat events are intensifying, cooling is not a luxury good. It is as a fundamental component of modern life — from cold supply chains for fresh food, to safe storage for life-saving vaccines and medicines, to cooler, safer work and educational environments that can elevate productivity. But as the latest [Global Tracking Framework](http://seforall.org/global-tracking-framework) shows, at least one billion people in the world currently lack access to electricity — and therefore can’t access basic cooling solutions, such as air conditioning and refrigeration. In short: We need to provide more people with access to cooling. But the current solutions can also be the problem. Cooling presently relies heavily on hydrofluorocarbons (HFCs), the climate-polluting chemicals we have long relied upon for our [air conditioners](http://time.com/4421908/climate-change-hfcs-air-conditioning/) and refrigerators. And so it is essential that, as we provide greater access, we find affordable, super-efficient, scalable solutions that do not contain HFCs. Otherwise, we will only prolong a vicious circle: [Climate change](http://time.com/4874888/climate-change-politics-history/) causes temperatures to rise; demand for cooling therefore also increases; the cooling pollutes, driving further lethal warming; and so on. Closing the world’s massive cooling gap is the focus of a new “[Cooling for All](http://seforall.org/content/cooling-for-all-initiative-announced)” initiative, which will focus on creating a direct intersection between three internationally agreed upon goals for the first time: the [Paris Climate Agreement](http://time.com/4801344/paris-agreement-climate-deal-donald-trump/), the Sustainable Development Goals and the Montreal Protocol’s Kigali Amendment. Approved last year in Rwanda, the Kigali Amendment calls for phasing out consumption and production of HFCs — providing a perfect opportunity for leveraging new technologies and approaches that could lead to leaps in cooling efficiency. In fact, compliance costs associated with the Kigali Amendment could largely be met by savings achieved through cooling efficiency gains. The economic and social and environmental costs of not providing sustainable and affordable cooling access for all remain poorly understood. Without better understanding, we risk having countries across the world risk getting locked into costly high-carbon, energy-inefficient cooling pathways as they try to quickly adjust to record temperatures. The [infrastructure is being built ](http://time.com/4831018/clean-energy-climate-change-renewable-energy/)— or will be soon. We need to make sure it’s made with the most modern technology available, and that innovation keeps pushing further. Without supporting communities, cities and countries to take the right, informed action, we risk more deadly heatwaves, and we risk volatile weather that will hit the poorest the hardest. The 30 hottest cities in the world are in developing countries and the people most at risk from [lack of cooling access](http://time.com/4005532/stay-cool-no-ac-tips/) are the most vulnerable: women, the poor, children and the elderly. In order to ensure a future that allows us all to live in safe environments, we need to blow in some cool air — and quickly. ```json [{"@context":"https://schema.org","@type":"OpinionNewsArticle","@id":"https://time.com/4884909/air-conditioning-ac-climate-change-global-warming/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/4884909/air-conditioning-ac-climate-change-global-warming/"},"headline":"Air Conditioning Is a Lifesaver. 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