July 4 heat wave would have been virtually impossible in 1776, climate analysis shows

Summary

The article examines how the July 4 heat wave affecting the eastern U.S. would have been "virtually impossible" in 1776, when the Founding Fathers declared independence. It highlights that the U.S. has warmed by about 3°F since then—faster than the global average rise of 2.5°F—driven by climate change. The piece uses the historical milestone of America's 250th birthday to underscore how profoundly the climate has shifted since the Revolutionary era.

Source

bskyJuly 4 heat wave would have been virtually impossible in 1776, climate analysis showsscientificamerican.com