Without Climate Change, U.S. Heat Wave Called ‘Virtually Impossible’

Scientists state that current U.S. heat wave conditions are virtually impossible without climate change driven by fossil fuel use. An Extreme Heat Warning remains active through 8PM on July 3, 2026, as dangerous heat and humidity persist, despite a slight decrease in intensity compared to the previous day. The warming world has created a climate fundamentally different from the era before rapid fossil fuel consumption began, making such extreme weather events more frequent.