Like cybersecurity and the COVID-19 pandemic response, climate change and other ecological transformations are not easily dealt with using traditional approaches to the management of security, defence, development and foreign policy. For this reason, leading countries such as the United Kingdom and Australia have, in recent years, undertaken national security reviews. These reviews have reframed their approach, emphasizing the linkages between traditional security and emerging fields of human security and climate security, and collating this information into a thoughtful vision for the future. It is time for Canada to do the same. This new vision combines international leadership, in particular putting substance behind the recent announcement that Canada will host a North Atlantic Treaty Organization-accredited Centre of Excellence on Climate and Security. The report recommends three additional Canadian initiatives.