On April 22, 2016, Earth Day, 175 nations came together to sign the Paris Agreement and make their commitment to take action on climate change official. To reach the goals set out in this agreement it will take a truly global effort. Each and every sector must step up to develop a low carbon path for the future. The health sector plays a critical role to both take action to reduce its own climate impacts and act as a leader to inspire others to do the same.