绿色和平：2025年人工智能的环境影响研究报告（英文版）

Artificial Intelligence (AI) is omnipresent and transforming the world. The increasing use of AI not only brings progress—it also introduces new environmental challenges. Several examples illustrate the current dynamic: ▶ AI models are becoming larger, more complex, and more energy-hungry. ▷ The number of parameters has risen from 1.5 billion (GPT-2, 2019) to 2 trillion (LLama 4, 2025). ▷ The computational effort required for training doubles approximately every five months. [Epoch AI] ▶ Th