Amazon’s data centers used 2.5 billion gallons of water last year

Amazon disclosed that its global data centers consumed 2.5 billion gallons of water in 2025, representing a 2% decrease from 2024 despite operational expansion. The announcement comes amid Seattle's one-year moratorium on new data centers and growing scrutiny over AI infrastructure's environmental impact, with Amazon claiming superior water efficiency compared to tech competitors.

Amazon's disclosure of its data center water consumption marks a significant moment in the ongoing debate over AI infrastructure's environmental footprint. The company reported 2.5 billion gallons of annual water usage at a rate of 0.12 liters per kilowatt-hour, achieving a 2% efficiency improvement year-over-year even as operations scaled. This transparency emerges strategically following Seattle's emergency moratorium on new data center construction, which notably included pressure from Amazon's own employees concerned about resource depletion.

The broader context reveals intensifying regulatory and public scrutiny of Big Tech's environmental practices. Data centers powering AI model training and inference consume vast quantities of water for cooling systems, coinciding with regional water scarcity concerns. Amazon's efficiency claims relative to competitors suggest the industry faces mounting pressure to demonstrate responsible resource management. However, the absolute volume—2.5 billion gallons annually—underscores the scale of infrastructure demands required to support generative AI proliferation.

For investors and developers, this disclosure signals an emerging competitive dimension in AI infrastructure: environmental efficiency becomes a material factor in operational cost structures and regulatory approval timelines. Companies demonstrating superior water efficiency may gain approval advantages in water-constrained regions, while those with worse profiles face potential construction delays or restrictions. The trend toward mandatory environmental reporting suggests future regulatory requirements around data center operations will expand globally.

Looking ahead, watch for similar disclosures from other major cloud providers and whether regional jurisdictions begin conditioning data center permits on efficiency benchmarks. The intersection of AI demand growth with environmental constraints will likely reshape infrastructure geography and operational costs across the sector.

• →Amazon's data centers used 2.5 billion gallons of water in 2025, down 2% from 2024 despite operational growth.
• →The disclosure follows Seattle's one-year moratorium on new data centers prompted partly by employee environmental concerns.
• →Amazon claims superior water efficiency at 0.12 liters per kilowatt-hour compared to some Big Tech competitors.
• →Water consumption and energy use are becoming central considerations in AI data center regulatory debates.
• →Environmental efficiency may increasingly affect data center approval timelines and regional siting decisions.