Climate change is (quite literally) sickening. As a lung and ICU doctor, my patients’ health is threatened by unhealthy air and climate change, and now COVID-19. From catastrophic wildfires and longer, more intense pollen seasons, to air pollution worsening the severity of COVID19 infections, a warming climate can sicken and kill - causing asthma attacks, heart attacks, strokes and more. I owe it to my patients and my children to fight for a better future.