strubell-250-tons-co2-large-nlp-training
IN premise — summaries/2026/08/24/wiki-Large_language_model-chunk-5-chunk-2.md
Created 2026-08-24T17:11:17+00:00
Strubell et al. (2019) demonstrated that training large NLP models can emit more than 250 tons of CO2, equivalent to 5 or more cars over their lifetimes
Summary
Training a single large language model can produce enough carbon emissions to rival the lifetime output of several cars, meaning AI development carries a concrete, measurable environmental cost rather than an abstract one. This matters because it puts model training in the same category of ecological impact as other heavy industrial processes, making sustainability a practical engineering constraint, not just a nice-to-have consideration.