Overview
- The UN announced the initiative on Tuesday at London Climate Action Week and called on major AI firms to publicly disclose the full energy, water, land and carbon footprints of their systems.
- The drive was prompted by a UNU-INWEH report that estimated 2025 data-centre use at about 448 TWh of electricity, 4.5 trillion litres of water and 189 million tonnes of CO2 and projected roughly double those impacts by 2030 if current trends continue.
- As part of the initiative the UN urged companies to commit to powering all data centres with renewable electricity by 2030 as a central step to cut emissions from AI infrastructure.
- Reporting and researchers warn that low-carbon choices can raise water or land use and that the environmental costs of data centres are often borne unevenly by local host communities, which has already led some permit reviews and growing public resistance.
- Tech firms are pursuing efficiency and on-site renewable options and have been reported to explore ambitious ideas like space‑based solar, but those concepts remain unconfirmed and face technical, cost and equity questions that regulators and investors may now weigh.