For pediatric anesthesiologist Jonathan M Tan, MD, MPH, MBI, FASA, making an impact in pediatric health care started with a single question: With children being among the most vulnerable to the effects of weather and climate change, why are health care professionals and health systems not equipped with the environmental exposure data needed to protect their patients’ health?“Answering this question and working toward a solution led me on an exciting journey to solve an unmet need in pediatric health care,” Dr.