NEW GLOBAL STUDY: DANGEROUS NIGHTTIME HEAT RISING IN 83% OF GLOBAL CITIES ANALYZED, BECOMING MORE OPPRESSIVE, AND MORE FREQUENT

WASHINGTON, Nov 20 (Bernama) -- 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.

The study by Climate Resilience for All, Extreme Heat and the Shrinking Diurnal Range: A Global Evaluation of Oppressive Air Mass Character and Frequency, analyzed weather data over a 30-year period from 1994 to 2024, isolating the two types of weather conditions, or “air masses”, considered most dangerous for human health: “dry tropical” (DT) weather, which is hot and dry, and “moist tropical” (MT) weather which is hot and humid.