In June 2021, the Canadian Institute for Climate Choices published “The Health Costs of Climate Change: How Canada Can Adapt, Prepare, and Save Lives.” This report—the second in the Costs of Climate Change series—identifies and quantifies known health-related costs of climate change. It finds that the impacts of climate change on health could cost Canada’s healthcare system billions of dollars and reduce economic activity by tens of billions of dollars over the coming decades. Per the report, covernments can save lives and minimize costs by investing proactively in measures that improve people’s health and security—particularly if they focus on addressing the root causes that put some people at greater risk.