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Climate Shift Index data show temperatures 10° to 25° above average were made 2 to 3 times more likely by human-caused climate change.

For areas in South Texas and northern Florida, warmth like this would be rare or almost impossible without heat-trapping pollution.
November 19, 2025 at 11:25 PM
Cooler weather is on the way for the Lower 48 as we get closer to December.

But before the pattern shifts, unusual November warmth has been breaking or nearing daily records across the US this week.

🧵Here’s how we know climate change has a clear influence on this fall heat
November 19, 2025 at 11:25 PM