Hugging Face Hub enables CO2 tracking with emissions_threshold search and CodeCarbon integration

AI Impact Summary

HF Hub introduces CO2 emission tracking and an emissions_threshold search to surface lower-emission models. The huggingface_hub API (HfApi.list_models) can filter by emissions_thresholds, and the Transformers training workflow can emit carbon data via CodeCarbon, storing results in emissions.csv and in model cards via co2_eq_emissions. This enables engineering teams to compare models by carbon footprint and include verifiable emissions data in model documentation for governance and sustainability reporting.