Heat wave 2025: 12 million German Leiden under extreme heat!

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The heat check 2025 evaluates the heat load in Bremen and other German cities, shows solutions for improvement.

Der Hitze-Check 2025 bewertet die Hitzebelastung in Bremen und anderen deutschen Städten, zeigt Lösungen zur Verbesserung auf.
The heat check 2025 evaluates the heat load in Bremen and other German cities, shows solutions for improvement.

Heat wave 2025: 12 million German Leiden under extreme heat!

The heat load in German cities remains an urgent topic. According to the current analysis of German environmental aid, over 12 million people in Germany are attested to an extreme heat load. A total of 190 cities with more than 50,000 inhabitants were examined. The results are alarming: 31 cities received a red card, 131 A yellow card, while 28 cities were awarded a green card. Cities in particular are Mannheim, Ludwigshafen and Worms, where up to 91 percent of the population live in heavily loaded areas. This is shown by the current [Hitze-Check of the German Environmental Aid] (https://www.duh.de/presse/pressemitteilungen/pressemitteigungen/beit-hitze-check-der-dedewitschenhilfe- Mehrs-12-million-men-in-deutschen-staedten-v/).

The cities also do comparatively well in the northern German region. Bremen and Bremerhaven are in the midfield of the evaluation. Factors such as sealing, population density and the proportion of green areas play a crucial role here. The investigations showed that cities in the northwest, such as Oldenburg and Wilhelmshaven, belong to the 28 cities with the lowest heat load. This positive assessment is due to the lower average surface temperature that prevails in northern Germany - in contrast to the higher temperatures in southwestern Germany, where the sealing of areas and the lack of green areas are significantly more noticeable.

the need for more green areas

Deutsche Environmental Aid vehemently demands that cities introduce binding minimum green parts on land, buildings and in public space. The increase in green areas could not only increase the quality of life, but also significantly improve heat protection. This depends above all on the removal and greening of facades and streets. "We have to transform our cities into green oases," said the DUH federal manager, which is seen as an indispensable infrastructure to improve urban climate, reports Deutschlandfunk .

The problem is impressive, especially in burdened cities: marketplaces without trees and paved schoolyards present a picture that is not only unattractive, but also susceptible to heat. At high temperatures, trees can reduce the air temperature within a radius of up to 40 meters by up to 10 degrees Celsius. Open water surfaces can also contribute to the desired cooling.

a common concern

The recommendations from the analyzes apply to all cities, not only for those particularly stressed. The citizens: Inside, are invited to ask their respective municipalities to take more heat protection measures. Around 3,000 people die in Germany every year in Germany, which underlines the urgency of such measures. According to the analysis, indicators such as sealing, green space volume as well as the surface temperature and population density were used to create the heat flow index.

In conclusion, it should be noted that the Hitze-Check 2025 is an important basis for future urban development. It is up to us to take these developments into account in Bremen and Bremerhaven and actively participate in an improvement in living conditions in our cities. Because a sustainable turn can only be brought about through joint action.

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