Czech study warns of more dangerous heat extremes

A new study by Czech climatologists provides the most detailed estimate yet of how dangerously high temperatures could develop in Central Europe. It suggests that the coming decades could bring a significant increase in days when extreme daytime heat coincides with tropical nights, when temperatures do not fall below 20 degrees Celsius.

Such conditions pose a major health risk. Some regions could see more than seven such days a year. At present, the combination of hot days and tropical nights is relatively rare, averaging fewer than two days a year between 1995 and 2014.