The Importance of Physician Climate Advocacy in the Face of Political Denial.

Most physicians accept the general scientific discoveries about anthropogenic global warming and its dangers. Occasional denial by individual physicians of climate change can be readily answered by reference to the scientific consensus. But widespread, organized, political denial of climate change is hazardous to physicians' advocacy for an effective public health and health care response to climate change. This article assumes that physician climate advocacy is ethical and celebrates the many forms of health climate advocacy already under way. It concludes by drawing attention to measures that can scale up and strengthen the health care system's organized response to growing climate health hazards.