Leveraging Our Strengths to Achieve Sustainable Healthcare.

We are fortunate to have the reflections and wisdom of experts from multiple disciplines in this issue's discussion of healthcare sustainability. In the lead paper of this issue of Healthcare Papers, we issued a call to action drawing on the capacity of the Canadian health sector to address climate change (Miller and Xie 2020). Our colleagues agree on the need to deliver sustainable care and raise important questions about how such an aim can be achieved. In this response, we consider and revisit three themes: feasibility of a sustainable healthcare system, theories of change that support our recommendations and capacities that enable change.