The Canadian Nurses Association (CNA) believes that changes in our climate are occurring worldwide and that nurses have a role in supporting adaptation to and mitigation of climate change through nursing practice, research, administration, education and policy. The most recent report of the Intergovernmental Panel on Climate Change (IPCC) concluded unequivocally that our climate is changing in response to human activities and that human health is being affected by these changes. The CNA Code of Ethics for Registered Nurses supports nursing action on climate change.