联合国大学：2026年人工智能能耗的环境成本研究报告：碳、水和土地足迹（英文版）

This report, Environmental Cost of Artificial Intelligence: Carbon, Water and Land Footprints, by the United Nations University Institute for Water, Environment and Health (UNU-INWEH) on its 30th anniversary, examines one of the most underexplored consequences of AI’s rapid expansion: the environmental footprints of the energy required to power it. As artificial intelligence becomes embedded in economies, public services, research, communication, and everyday life, it depends on a growing phy