What environmental impacts are AI data centers criticized for?

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AI data centres are criticised for heavy energy and water use, plus poor transparency

AI data centres are criticised by environmental groups for their high energy consumption and high water use, alongside a lack of transparency about their environmental impacts. UN Secretary-General António Guterres highlighted that, by 2030, data centres could use more power than all but five countries and could use enough water to meet the basic needs of all 1.3 billion residents of sub-Saharan Africa for a full year.
High energy consumption is a central criticism
Environmental groups have scrutinised data centres because they require large amounts of power to run and support AI-related computing. Guterres said that by 2030 data centres could use more power than all but five countries, underscoring the scale of the energy concern.
High water use is also criticised
The same scrutiny extends to water consumption, with environmental groups pointing to the water needed to support data centre operations. Guterres said data centres could use enough water to meet the basic needs of all 1.3 billion residents of sub-Saharan Africa for an entire year.
Lack of transparency about environmental costs is another key issue
Critics also argue that the sector does not provide enough public information about the environmental cost of data centres. Guterres launched a transparency initiative for the sector, calling for public disclosure of environmental impacts.
The UN tied the criticism to measurable impacts like water, carbon and land use
Guterres specifically called on AI firms to measure and publicly disclose their water, carbon and land use impacts. He also criticised reliance on voluntary net-zero commitments and renewable electricity targets, noting that some firms were turning to gas or promoting nuclear for new projects.

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What environmental impacts are AI data centers criticized for?

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