New Global Study: Dangerous Nighttime Heat Rising in 83% of Global Cities Analyzed, Becoming More Oppressive, And More FrequentWASHINGTON, Nov. 19, 2025 (GLOBE NEWSWIRE) -- While leaders have been focusing on avoiding breaching the +1.5°C threshold of the Paris Agreement, a sweeping new scientific analysis of the most dangerous summer weather conditions across 100 major global cities revealed that minimum nighttime temperatures have been rising up to 10 times faster than daytime average highs in many global cities during oppressively hot weather.
