Fiona's tireless, dedicated, and often unseen work has seen the climate change implications for health put on the agendas of multiple governments. Her work at the helm of the Climate and Health Alliance (CAHA) was instrumental in spreading wide community understanding of these impacts. Through her guidance, CAHA has come to include almost all of the health peak bodies, and their work is helping the health sector not only raise awareness of the public health emergency but of what the sector itself can do to reduce its carbon footprint.