As the AI era accelerates, a new environmental concern is rising to prominence: the staggering increase in data center water consumption. Recent reports reveal that the rapid expansion of data centers to meet growing demands has significantly strained water resources, posing serious sustainability challenges for major tech firms.
A Surge in Water Usage
Data centers, essential to supporting cloud computing and AI operations, are now consuming water at unprecedented rates. According to records obtained by the Financial Times, water usage at data centers in Virginia’s “data center alley” has surged by nearly 64% since 2019. These facilities, which host around 70% of the world’s internet traffic daily, used over seven billion liters of water in 2023, up from approximately five billion liters in 2019.
This rise in water consumption parallels the rapid adoption of AI tools, which has created new demands on cloud infrastructure. Hyperscalers like Microsoft, Google, and Amazon have expanded their data centers globally to support these demands, intensifying their energy and water needs.
Sustainability Efforts and Their Limitations
While tech giants have made strides in reducing their carbon footprints by investing in renewable energy, the issue of water usage has often been overlooked. Microsoft, for example, signed a historic corporate renewable energy deal with Brookfield in July to power its data centers sustainably. Similarly, Amazon and Google have invested in renewable energy to minimize their carbon emissions.
However, water consumption remains a critical challenge. As Ghinwa Chammas, Director of Group Sustainability at the British Standards Institution (BSI), pointed out, water is a finite resource that must be managed carefully. “Any large-scale use of freshwater must recognize that the world’s water security challenge is as urgent as climate change,” she stated.
Water Scarcity and Tech Giants’ Impact
The water usage by data centers is especially problematic in areas already experiencing high water stress. In 2022, a Google data center in The Dalles, Oregon, drew sharp criticism after it was revealed that it consumed one-third of the city’s water supply for cooling purposes. This occurred during a prolonged drought, exacerbating local water shortages. In 2023, Google disclosed that 15% of its total freshwater use came from regions facing severe water scarcity, while Microsoft reported that 42% of its freshwater withdrawals were from areas with water stress.
In response, these companies have pledged to become more water-efficient. Microsoft aims to be water positive by 2030, focusing on conserving water at every operational stage and deploying innovative technologies to minimize water use. Similarly, Amazon’s AWS has committed to becoming water positive by 2030, with initiatives that aim to replenish more water than it consumes.
New Measures and Challenges
To mitigate their impact, tech companies are implementing several measures. AWS, for example, uses recycled wastewater in 18 of its data centers in Virginia instead of drinking water. The company has also launched 21 water replenishment projects globally, aiming to return seven billion liters of water annually once completed.
However, as Chammas warns, the continued expansion of data centers to support AI demand will likely increase the sector’s water usage. She advocates for a circular economy approach, emphasizing water recycling and reuse to minimize freshwater extraction.
A Call for Responsible Water Management
As data centers become more water-intensive, tech companies must go beyond mere efficiency. “Technology organizations need to aim for a net gain for the environment through initiatives that replenish or conserve water resources,” Chammas concluded.
The challenge now is for tech giants to balance their growth with sustainable water use practices, ensuring that their operations do not compromise global water security.
