AI’s Environmental Footprint: Insights and Actions

Videos
ML+X
UW-Madison
Ethical AI
Trustworthy AI
Sustainability
Energy
Benchmarking
LLM
RAG
Retrieval
Cloud
GPU
Presenters

Chris Endemann

Nidhal Jegham

Date

September 9, 2025

About this resource

This forum explores how ML/AI practitioners can measure and reduce the environmental costs of AI. It pairs two complementary efforts: one that retrieves emissions and cost data from sustainability reports using RAG, and another that benchmarks energy, water, and carbon footprints across large language models.

WattBot: Estimating AI Emissions and Costs with RAG — Chris Endemann 02:24

Chris introduces WattBot, a Kaggle challenge and retrieval-augmented generation (RAG) framework for estimating AI emissions and compute costs. Using 35+ papers and 300+ curated Q&A pairs, teams build systems that return citation-backed answers or explicitly state when evidence is missing—promoting transparency and reproducibility in sustainability reporting.

How Hungry is AI? Benchmarking Energy, Water, and Carbon Footprint of LLM Inference — Nidhal Jegham 09:07

Nidhal presents a reproducible framework to estimate per-request energy, water, and carbon use for open and proprietary LLMs. The method combines hardware assumptions (A100–H200 GPUs), data center multipliers (PUE, WUE, CIF), and a DEA-style efficiency score that balances model accuracy against environmental cost.

Key points

  • Data center efficiency and GPU generation (A100–H200) drive impact as much as model size.
  • Environmental multipliers like PUE (Power Usage Effectiveness) and WUE (Water Usage Effectiveness) are critical to cross-site comparisons.
  • Efficiency is not absolute: the Jevons paradox applies—lower per-query cost can increase overall usage.
  • U.S. regulation remains minimal, making voluntary transparency efforts (like Mistral’s) especially important.
  • Renewable energy sourcing and liquid cooling are among the most actionable interventions.
  • Academic and industry collaborations can close data gaps through open benchmarking.
  • Aggregate usage, not single-query cost, drives total environmental footprint.
  • Reporting environmental impact alongside accuracy metrics is an emerging best practice.

See also