The Impending Threat of Wildfire Smoke on American Lives

Pollution from fires, driven by climbing temperatures, threatens to become one of the deadliest climate-related disasters in the United States.

New research warns that if global temperatures continue to rise as they have, wildfire smoke exposure could claim up to 70,000 American lives annually by 2050. Marshall Burke, an environmental economist at Stanford University and contributor to the study, highlights this as significant evidence of the dangers climate change poses to the American population. Dr. Burke notes, “The impacts are much larger than anything else that has been measured.”

Published in the journal Nature, the study provides a comprehensive forecast that wildfire smoke, exacerbated by warming, could result in approximately two million deaths over the next 30 years. This research leverages around 20 years of death records alongside satellite and ground data on wildfire smoke pollution to evaluate its impact on mortality rates.

Kai Chen, an associate professor at the Yale School of Public Health, not involved in the study, expressed concern over the findings. He remarked, “This paper is a wake-up call for people. It shows this is a nationwide problem, and it’s tied to climate change.”

In late July, the Trump administration suggested rescinding the endangerment finding—an Obama-era scientific assessment that greenhouse gases threaten public health. This finding serves as the legal foundation for stringent regulations on industrial greenhouse gas emissions sources. Carbon dioxide and methane, produced from burning fossil fuels, trap heat in the atmosphere. Since the start of the industrial revolution, Earth’s average temperature has climbed approximately 1.3 degrees Celsius.