What's causing Utah's record-hot low temperatures? - The Salt Lake Tribune
sltrib.com
Utah's record-hot low temperatures are rising fastest at night and in winter — and the science behind why cold is warming quicker than heat is striking.
Greenhouse EffectUrban Heat Island EffectClimate Feedback LoopsConspiracy Theory
Theory Briefing
- Utah is breaking records not for daytime highs but for nighttime and winter low temperatures, the most unusual warming signal.
- Some suspect thermometer tampering or conspiracy, but scientists point to well-documented atmospheric mechanisms driving the asymmetric trend.
- Nighttime lows rising faster than daytime highs is consistent with greenhouse gas theory, which traps heat that would otherwise escape after dark.
- Urban heat island effects can also elevate overnight readings as cities retain warmth absorbed during the day.