Amazon is pushing back against mounting criticism over data center water consumption by releasing new efficiency metrics and pledging continued transparency on the issue.
The company revealed Thursday that it has reached 75 percent of its 2030 goal to replenish more water into communities than its data centers consume. Amazon also claimed its facilities are seven times more water-efficient than the industry average, citing a January academic study converted using Energy Department methodology.
Public concern over data center expansion has grown sharply. A Gallup poll released in May found that roughly 70 percent of Americans oppose building data centers in their communities, with water consumption for cooling ranked as the top environmental worry.
Kara Hurst, Amazon's chief sustainability officer, said the company views water efficiency as essential to earning community trust. "There is a perception, perhaps, that the data centers are taking more water than people understand," Hurst said in an interview. "I do think it's incredibly important that we are transparent." She called for a competitive push toward better practices across the industry.
Amazon's announcement follows a similar water-focused campaign from Google last week, signaling that major tech firms are scrambling to address environmental concerns tied to the AI buildout.
How the cooling works
Data centers generate intense heat that must be continuously removed. Advanced AI chips increasingly rely on liquid-cooling systems that circulate coolant through sealed loops with minimal water loss. For broader facility cooling, operators choose between water-intensive methods and electricity-heavy alternatives based on local conditions and grid stress.
Amazon says it leans heavily on "free-air" cooling, which pulls outside air when weather permits and sidesteps water needs. On extremely hot days, however, the company argues that using water becomes the most efficient choice overall. "We determined it's better overall to use some water during the hottest days of the year than to overconsume electricity during the very moments when the grid is most stressed," Amazon stated in its release.
In Northern Virginia, one of Amazon's largest data center hubs, the company reported a 42 percent reduction in water use during 2025 compared to 2024, despite rising computing demand.
The efficiency gains highlight a central tension in the industry. Tech companies can reduce water per unit of computation, but total demand for AI infrastructure continues to surge. Whether efficiency improvements can keep pace with explosive growth remains unclear.
Amazon also stressed that data centers consume far less water than agriculture or household lawn irrigation. Hurst acknowledged the company is planning for significant expansion but framed it as part of a commitment to "good growth, sustainable growth." Comparisons to other industries, however, may do little to ease concerns in communities facing rapid large-scale data center projects on their doorstep.
Author James Rodriguez: "Amazon's numbers look better than the industry, but the real test is whether any of this actually matters to communities that don't want these facilities built nearby in the first place."
Comments