How do environmental conditions impact our health and well-being? Dr. Mark Vossler is the 2025 national president of Physicians for Social Responsibility, as well as a congressional liason for Citizens' Climate Lobby. As a practicing cardiologist for over 30 years, he has seen first-hand the effects of climate change on our physical health. Dr. Vossler is a prominent advocate for public health and sound environmental policies at both the state and national levels.