For starters it’s an article in 2026, talking about a study from 2024. And conflates global warming awareness with heat awareness.
After this summer I don’t think anyone is unaware of the risks of heat and smoke and drought.
edit: did some digging. it's not a real survey, it's an estimate of what they think people think.
"The estimates are derived from a statistical model using multilevel regression with post-stratification (MRP) on a large national survey dataset, along with demographic and geographic population characteristics."