The United Nations University Institute for Water, Environment and Health released a report this week detailing the environmental costs of AI-driven data centers [1].
As artificial intelligence demand surges, the energy and water required to power these facilities threaten to overwhelm national grids and local ecosystems. The findings suggest that the digital transition may outpace the development of sustainable infrastructure.
According to the UNU-INWEH report, global electricity consumption from data centers could reach 945 TWh by 2030 [3]. AI workloads are projected to contribute approximately 40 percent of that total [3].
The report uses Ireland as a primary case study to illustrate these pressures. Currently, data processing consumes 21 percent of Ireland's electricity [4]. The UN institute said the strain on the Irish power grid is a cautionary tale for the rest of the world [4].
Despite these warnings, some officials maintain that current growth is under control. Darragh O'Brien, Minister for Energy and the Environment, said data centres’ energy use is being “managed appropriately” by the government [5].
Beyond electricity, the report examines the significant water use required for cooling the servers that process AI queries. The environmental footprint extends to the very way users interact with these systems. A report author from UNU-INWEH said that adding a word like “please” to a prompt can make a huge difference in the energy required to generate a response [2].
The institute, based in Canada, aims to provide a framework for assessing the growing footprint of AI as it integrates into global commerce, and governance [1].
“By 2030, electricity consumption from these facilities could reach 945 TWh”
The report underscores a growing tension between the rapid deployment of generative AI and international climate goals. If AI continues to drive a significant percentage of global power demand, nations may face a choice between restricting data center growth or risking instability in their electrical grids. The specific mention of Ireland suggests that without strict regulatory oversight, the energy needs of the tech sector could displace the needs of residential and industrial consumers.
