Το ελβετικό MeteoSuisse ανέφερε άλλο ένα ρεκόρ καλοκαιρινής heatς τη Δευτέρα, όταν το μετεωρολογικό του μπαλόνι σκαρφάλωσε στα 17.400 πόδια ή 5.303.52 μέτρα, πριν φτάσει σε αυτό που αποκαλεί γραμμή μηδενικού βαθμού (zero-degree line).

The zero degree line, which is the altitude at which the temperature drops below freezing, is considered a key meteorological indicator, especially in mountainous regions, set a record in 2022.
"Payerne, [Switzerland] this night from 20 to 21 August 2023 measured the 0C isothermal temperature at 5.298 meters, which is a record since measurements began in 1954," MeteoSuisse reported in one of her posts in social media.
The weather service said the zero-degree line "affects vegetation, the snow line and the water cycle, so it has a significant impact on human, animal and plant nutrition".
The zero-degree line averaged 8.432 feet from 1991 to 2020, with a height reaching about 13.123 feet in summer.
"Anthropogenic climate change has caused a significant increase in the altitude of the zero-degree line in every season," reports MeteoSuisse.
