AI productivity could supercharge fossil emissions faster than clean energy can cancel them
An open-access Nature study models artificial intelligence as a productivity amplifier across both fossil-fuel and renewable-energy supply. Under parallel adoption scenarios, the authors estimate that AI-enabled fossil productivity could drive a net annual carbon dioxide increase of 0.47 to 1.8 gigatonnes, equal to 1.2% to 4.8% of 2024 global energy-related emissions. In the model, renewable productivity gains must be four to five times larger than fossil-sector gains to produce a net reduction. These are economy-model scenarios, not observed emissions or a forecast that must occur. The finding matters because most AI climate debate centers on data-center electricity and efficiency gains while overlooking how cheaper extraction and expanded supply can reinforce fossil incumbency. Without policy steering, optimizing both sides of a fossil-heavy economy does not produce a neutral result.