Climate change is the global health emergency of the 21st century

Hollis examines climate change as the global health emergency of the 21 century. There can be no discussion about climate change without a meaningful conversation about public health. As leading health experts have affirmed, the climate crisis is a threat multiplier, particularly for communities suffering from environmental injustice. For example, the Fourth National Climate Assessment, published in 2018 by a collaboration among 13 US scientific agencies, highlights how higher temperatures, severe weather events and rising seas can contribute to heat-related cardiopulmonary illness, infectious disease and mental-health issues. Societal factors such as poverty, discrimination, access to health care and pre-existing health conditions make some populations even more vulnerable.