Doctors pledge to do no harm. The entire health care sector should do the same by battling climate change

The alarming new report, "Climate Change 2021," from the U.N. Intergovernmental Panel on Climate Change emphatically and unequivocally reports that "human influence has warmed the atmosphere, ocean and land." The next few years will determine how hot the Earth gets and how much that will stress all life on it. The health sector, with its mission to help and heal, should be front and center in the fight against climate change, one of the greatest threats to global health in the 21st century. Inexplicably, it isn’t.