A relative measure of how much heat a refrigerant traps in the atmosphere over a 100-year period compared to carbon dioxide, which is assigned a GWP of 1. Regulatory frameworks such as the AIM Act and F-Gas Regulation use GWP thresholds to drive phase-downs of high-GWP refrigerants.
HVAC Glossary
GWP (global warming potential)
Last updated: June 9, 2026