A Longitudinal Assessment of Greenhouse Gas Emissions from Inhaler Devices in a National Health System

William G Weppner, Boise Veterans Affairs Medical Center, Boise, Idaho, USA, Department of Medicine, University of Washington School of Medicine, Seattle, Washington, USA, Hardeep Singh, Center for Innovations in Quality, Effectiveness and Safety, Michael E. DeBakey Veterans Affairs Medical Center and Baylor College of Medicine, Houston, Texas, USA, Jeremy Boyd, Idaho Veterans Research and Education Foundation, Boise, Idaho, USA, Garret Smith, Brian B Chesebro, Providence Center for Environmental Stewardship, Providence Health & Services, Renton, Washington, USA, Department of Anesthesiology and Perioperative Medicine, Portland Veterans Affairs Medical Center and Oregon Health & Science University, Portland, Oregon, USA