The water consumption of AI data centers

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AI data centers use freshwater resources required to operate and cool the infrastructure supporting artificial intelligence (AI) technologies.[1][2][3] Data centers housing AI workloads, such as training large language models and processing inference tasks, consume water directly for cooling systems and indirectly through electricity generation and supply chain processes. This consumption has escalated with the rapid growth of AI, driven by advancements in generative models like GPT-3 and increasing global demand for AI applications. As of 2025, AI data centers represent a growing environmental challenge, competing with other sectors for limited water resources amid climate change and population pressures.[4]

The environmental impact of AI data centers extends beyond water use to include energy demands and carbon emissions, but water scarcity has emerged as a critical concern.[5][6] Studies highlight that AI's water footprint is often underestimated, with mechanisms involving evaporative cooling and power production contributing to substantial withdrawals and consumption. Efforts to mitigate these impacts are underway, but transparency and regulation remain inconsistent across regions.[7][8][9]

## Contents

* 1 Mechanisms of Water Consumption
* 2 Scale and Projections
* 3 Geographical and Regional Impacts
* 4 Environmental and Societal Consequences
* 5 Mitigation Strategies and Innovations
* 6 Transparency, Reporting, and Regulation
* 7 References

## Mechanisms of Water Consumption

AI data centers consume water through direct and indirect mechanisms. Direct consumption primarily occurs via cooling systems, where water is used to dissipate heat generated by servers and GPUs during intensive AI computations, such as model training and inference. Evaporative cooling towers evaporate water to cool air, leading to losses of up to 80% through evaporation, with the remainder discharged as warm, potentially contaminated wastewater. Metrics like Water Usage Effectiveness (WUE) measure onsite efficiency, averaging 1-9 liters per kWh, varying by climate and technology.[10][11][12] Closed-loop systems recirculate water, reducing losses, while advanced methods like liquid immersion cooling submerge servers in dielectric fluids to minimize water needs. Indirect consumption arises from electricity generation, where thermoelectric and hydropower plants use water for steam production and reservoir evaporation, consuming 0.18-2.0 liters per kWh on average. Scope-3 impacts include ultrapure water for semiconductor manufacturing, with low recycling rates (23-45% in some facilities). AI workloads amplify these mechanisms due to higher heat loads from dense GPU clusters.[13][14][15]

## Scale and Projections

The scale of water consumption in AI data centers is substantial and growing. In the U.S., data centers consumed approximately 66 billion liters directly in 2023, tripling from 2014 levels, with indirect use adding hundreds of billions more. Globally, major providers like Google and Microsoft reported over 19.5 million and 6.4 million cubic meters in 2022, respectively, with annual increases of 17-34%.[16][17][18] Training a model like GPT-3 requires 5.4-15 million liters, while a single AI query can use 16-60 milliliters, scaling to billions of liters for widespread use.[19] Projections indicate rapid escalation: Global AI-related water withdrawal could reach 4.2-6.6 billion cubic meters by 2027, equivalent to half the UK's annual consumption, with U.S. AI alone potentially quadrupling to 150-280 billion liters by 2028. By 2030,data center energy use may hit 1,050 TWh, driving parallel water demands, potentially increasing 11-fold in some scenarios.[20][21]

## Geographical and Regional Impacts

Water consumption varies geographically, exacerbating stress in arid regions. In the U.S. Southwest (e.g., Arizona, Texas), data centers like Google's in Mesa consume up to 4 million gallons daily, straining Colorado River supplies and competing with agriculture. In the West, facilities in Phoenix and Oregon use 177-355 million gallons annually, representing 10-29% of local municipal water. Northern Virginia's 300+ centers withdrew 2 billion gallons in 2023, a 63% rise since 2019.[22][23][24] Internationally, India's Bengaluru centers use 8 million liters daily amid severe shortages, while Sydney, Australia, projects AI centers consuming 25% of the city's water by 2035.[25][26][27] In the UK, southeast regions face deficits of 2.5 billion liters daily by 2050, worsened by new AI growth zones. Africa shows lower per-task consumption in most countries but risks in drought-prone areas.[28][29][30]

## Environmental and Societal Consequences

The environmental consequences include freshwater depletion, ecosystem disruption, and pollution from discharged wastewater containing chemicals like PFAS. In water-stressed areas, this competes with municipal and agricultural needs, leading to dry wells, higher bills, and social conflicts, as seen in Georgia and Pennsylvania. Indirect impacts from fossil fuel power amplify carbon emissions, with AI delaying coal plant retirements and increasing pollution in marginalized communities. Societally, AI's water use threatens food security and health, contributing to 2 million annual deaths from water-related diseases globally. Economic costs include subsidized infrastructure upgrades borne by ratepayers, with bills potentially doubling in some U.S. states by 2039.[31][32]

## Mitigation Strategies and Innovations

Mitigation includes advanced cooling like closed-loop systems, liquid immersion, and zero-water evaporative designs, reducing freshwater use by 31-70%. Companies like Microsoft and Google aim for water-positive status by 2030, replenishing more than consumed via recycling, rainwater harvesting, and watershed projects. Renewable energy sourcing cuts indirect consumption, while AI optimizes water management in other sectors. Innovations such as ThermAquaGel for waterless thermal storage and dynamic scheduling to shift workloads to efficient locations offer further reductions. Circular water solutions, like using treated wastewater, and co-location with desalination plants, enhance sustainability.[33][34][35]

## Transparency, Reporting, and Regulation

Transparency is limited; fewer than one-third of operators track water metrics, and major firms like Amazon withhold figures, citing trade secrets. Reporting often uses WUE but omits indirect use, leading to underestimation. The EU's Energy Efficiency Directive mandates tracking, while U.S. proposals like the Artificial Intelligence Environmental Impacts Act require standards for impacts.[36][37]Regulation varies: The UK's Greening Government ICT Strategy promotes sustainability, but lacks mandates; calls for location-based reporting and incentives for efficiency grow. Globally, initiatives like ISO/IEC standards incorporate water metrics, urging holistic sustainability.[38][39][40]

## References

1. ↑ Hiremath, Rahul B. (2024). "AI-Embedded Data Centres: Promoting Sustainability and Reducing Water Footprint". 2024 First International Conference on Data, Computation and Communication (ICDCC). pp. 40–44. doi:10.1109/ICDCC62744.2024.10961316. ISBN 979-8-3315-3295-6.
2. ↑ Mytton, David (2021-02-15). "Data centre water consumption" (in en). npj Clean Water 4 (1). doi:10.1038/s41545-021-00101-w. ISSN 2059-7037. Bibcode: 2021npjCW...4...11M. https://www.nature.com/articles/s41545-021-00101-w.
3. ↑ Lei, Nuoa; Lu, Jun; Shehabi, Arman; Masanet, Eric (2025-06-01). "The water use of data center workloads: A review and assessment of key determinants". Resources, Conservation and Recycling 219. doi:10.1016/j.resconrec.2025.108310. ISSN 0921-3449. Bibcode: 2025RCR...21908310L. https://www.sciencedirect.com/science/article/pii/S0921344925001892.
4. ↑ Garcia, Mya (13 December 2024). "AI Uses How Much Water? Navigating Regulation Of AI Data Centers' Water Footprint Post-Watershed Loper Bright Decision". doi:10.2139/ssrn.5064473. https://papers.ssrn.com/sol3/papers.cfm?abstract_id=5064473.
5. ↑ Guidi, Gianluca; Dominici, Francesca; Gilmour, Jonathan; Butler, Kevin; Bell, Eric; Delaney, Scott; Bargagli-Stoffi, Falco J. (2024-11-14), Environmental Burden of United States Data Centers in the Artificial Intelligence Era
6. ↑ Bansode, Sheelratan Shashikant; Hiremath, Rahul; Hiremath, Gurudevi Rahul (2024-03-07), "Promoting Sustainability" (in en), Practice, Progress, and Proficiency in Sustainability (IGI Global): pp. 220–232, doi:10.4018/978-1-6684-9863-7.ch010, ISBN 978-1-6684-9863-7, https://www.igi-global.com/chapter/promoting-sustainability/341617, retrieved 2025-10-07
7. ↑ George, A. Shaji; George, A. S. Hovan; Martin, A. S. Gabrio (2023-04-20). "The Environmental Impact of AI: A Case Study of Water Consumption by Chat GPT" (in en). Partners Universal International Innovation Journal 1 (2): 97–104. doi:10.5281/zenodo.7855594. ISSN 2583-9675. http://www.puiij.com/index.php/research/article/view/39.
8. ↑ Saklani, Sumit; Singh, Devendra (2024-10-02). "Minimizing Carbon Emissions by Improving Water and Energy Use Efficiencies in AI Servers: A Green Cloud Computing Strategy for Sustainable Artificial Intelligence Systems" (in en). International Journal of Innovative Science and Research Technology (IJISRT) 9 (9): 1822–1824. doi:10.38124/ijisrt/IJISRT24SEP1195. ISSN 2456-2165.
9. ↑ "Their Water Taps Ran Dry When Meta Built Next Door" (in en). 2025-07-14. https://www.nytimes.com/2025/07/14/technology/meta-data-center-water.html.
10. ↑ "The Real Story on AI Water Usage at Data Centers - IEEE Spectrum" (in en). https://spectrum.ieee.org/ai-water-usage.
11. ↑ "Explained: Generative AI's environmental impact" (in en). 2025-01-17. https://news.mit.edu/2025/explained-generative-ai-environmental-impact-0117.
12. ↑ Barringer, Felicity (2025-04-08). "Thirsty for power and water, AI-crunching data centers sprout across the West" (in en). https://andthewest.stanford.edu/2025/thirsty-for-power-and-water-ai-crunching-data-centers-sprout-across-the-west/.
13. ↑ "A quarter of your water. Could this be the true cost of AI?" (in en-AU). ABC News. 2025-08-27. https://www.abc.net.au/news/2025-08-27/ai-to-take-up-one-quarter-of-sydney-water-in-a-decade/105700928.
14. ↑ Perkins, Tom (2025-10-04). "Advocates raise alarm over Pfas pollution from datacenters amid AI boom" (in en-GB). The Guardian. ISSN 0261-3077. https://www.theguardian.com/environment/2025/oct/04/pfas-pollution-data-centers-ai.
15. ↑ Hao, Karen (2024-03-01). "AI Is Taking Water From the Desert" (in en). https://www.theatlantic.com/technology/archive/2024/03/ai-water-climate-microsoft/677602/.
16. ↑ Carver, By Alejandra Martinez and Jayme Lozano (2025-09-25). "Data centers are thirsty for Texas' water, but state planners don't know how much they will need" (in en). https://www.texastribune.org/2025/09/25/texas-data-center-water-use/.
17. ↑ Luse, Brittany (2025-09-29). "How AI impacts the environment (and your energy bill)" (in en). NPR. https://www.npr.org/2025/09/29/nx-s1-5551155/how-ai-impacts-the-environment-and-your-energy-bill.
18. ↑ CNET, Corin Cesaric; Magazine, she covered crime at People; national; read, international news at NBC Local Television Stations Expertise Home | Health | Energy | Climate Change | AI | Appliances See full bio Corin Cesaric 17 min. "AI Data Centers Are Coming for Your Land, Water and Power" (in en). https://www.cnet.com/tech/services-and-software/features/ai-data-centers-are-coming-for-your-land-water-and-power/.
19. ↑ "Client Challenge". https://www.ft.com/content/65fff689-bd47-4c15-bdb8-083e5ccd84dc.
20. ↑ "AI data centers to drive 11-fold rise in water consumption by 2028: Morgan Stanley". The Economic Times. 2025-09-08. ISSN 0013-0389. https://economictimes.indiatimes.com/tech/artificial-intelligence/ai-data-centers-to-drive-11-fold-rise-in-water-consumption-by-2028-morgan-stanley/articleshow/123755912.cms.
21. ↑ "Circular water solutions key to sustainable data centres" (in en). https://www.weforum.org/stories/2024/11/circular-water-solutions-sustainable-data-centres/.
22. ↑ Jackson, Amber (2025-02-07). "AI Data Centres: Can Water Companies Handle the Heat?" (in en). https://datacentremagazine.com/technology-and-ai/ai-data-centres-can-water-companies-handle-the-heat.
23. ↑ Hakimian, Rob (2025-09-04). "Addressing water consumption in data centres amid AI expansion" (in en). New Civil Engineer. https://www.newcivilengineer.com/opinion/addressing-water-consumption-in-data-centres-amid-ai-expansion-04-09-2025/. Retrieved 2025-10-07.
24. ↑ "Sustainable AI: Mitigating water risks in data centres" (in en). https://www.slrconsulting.com/afr/insights/sustainable-ai-mitigating-water-risks-in-the-data-centre-boom/.
25. ↑ Girsa, Niharikia (2025-06-05). "AI's Invisible Price: Water Use and the Sustainability Dilemma - International Centre for Sustainability" (in en-GB). https://icfs.org.uk/ais-invisible-price-water-use-and-the-sustainability-dilemma/.
26. ↑ DiFelice, Ben Murray, Mia (2025-04-09). "Artificial Intelligence: Big Tech's Big Threat to Our Water and Climate" (in en-US). https://www.foodandwaterwatch.org/2025/04/09/artificial-intelligence-water-climate/.
27. ↑ daxsom (2024-07-19). "Data centers draining resources in water-stressed communities" (in en-US). https://utulsa.edu/news/data-centers-draining-resources-in-water-stressed-communities/.
28. ↑ bobayerl@uwm.edu (2025-08-25). "Center for Water Policy talks about the extreme amounts of water used at data centers" (in en-US). https://uwm.edu/freshwater/data-centers-consuming-water-the-conversati/.
29. ↑ Infrastructure, UKAI Investment & (2025-07-03). "AI data centres spark fresh fears over future UK water shortages - UKAI" (in en). https://ukai.co/ai-data-centres-spark-fresh-fears-over-future-uk-water-shortages/.
30. ↑ s.kallova@gresb.com (2025-05-20). "Cooling data centers: Managing water use in the age of AI and ESG" (in en-GB). GRESB. https://www.gresb.com/nl-en/cooling-data-centers-managing-water-use-in-the-age-of-ai-and-esg/.
31. ↑ "Error: no `|title=` specified when using {{Cite web}}". https://www.researchgate.net/publication/373295068.Error:+no+`|title=`+specified when+using+{{[[Template:Cite+web|Cite+web]]}}[[Category:Articles+with+incorrect+citation+syntax|The+water+consumption+of+AI+data+centers]]&rft.atitle=&rft_id=https://www.researchgate.net/publication/373295068&rfr_id=info:sid/en.wikibooks.org:The_water_consumption_of_AI_data_centers">
32. ↑ Guidi, Gianluca; Dominici, Francesca; Gilmour, Jonathan; Butler, Kevin; Bell, Eric; Delaney, Scott; Bargagli-Stoffi, Falco J. (2024-11-14), Environmental Burden of United States Data Centers in the Artificial Intelligence Era
33. ↑ "I can't drink the water' - life next to a US data centre". 10 July 2025. https://www.bbc.com/news/articles/cy8gy7lv448o.
34. ↑ Sharma, Lakshmee (2024-12-19). "AI Data Centers Threaten Global Water Security" (in en). Lawfare. https://www.lawfaremedia.org/article/ai-data-centers-threaten-global-water-security.
35. ↑ Communications, Grainger Engineering Office of Marketing and. "AI's Challenging Waters" (in en). https://cee.illinois.edu/news/AIs-Challenging-Waters.
36. ↑ Environmental and Energy Study Institute (EESI). "Data Centers and Water Consumption | Article | EESI" (in en). https://www.eesi.org/articles/view/data-centers-and-water-consumption.
37. ↑ Gratton, Peter Gratton Full Bio Peter; Ph.D.; Ed, is a New Orleans-based; Investing, Professor with Over 20 Years of Experience in; Management, Risk; investments, Peter; ethics; Po, Public et al.. "The Hidden Cost of AI: How Data Centers Are Draining Water Resources and What It Means for Investors" (in en). https://www.investopedia.com/how-data-centers-are-draining-water-resources-11738978.
38. ↑ Jessen, Jasmin (2025-05-20). "Black & Veatch: AI Data Centres Causing Water Concerns" (in en). https://sustainabilitymag.com/articles/the-water-consumption-question-data-centres-and-utilities.
39. ↑ "Water consumption of African data centers in the age of AI" (in en). https://www.africa.engineering.cmu.edu/news/2025/08/13-water-efficiency.html.
40. ↑ Gordon, Cindy. "AI Is Accelerating the Loss of Our Scarcest Natural Resource: Water" (in en). https://www.forbes.com/sites/cindygordon/2024/02/25/ai-is-accelerating-the-loss-of-our-scarcest-natural-resource-water/.

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