Meteorologist Jörg Kachelmann denounces ZDF heatwave tips

Swiss weather expert Jörg Kachelmann has publicly criticized a ZDF infographic that advised keeping windows closed and rolling up carpets during the current heatwave. He labeled the recommendations as “nonsense” and “active euthanasia,” warning that they could endanger especially older residents by raising indoor humidity and temperature. Kachelmann urged regular, targeted ventilation and the use of fans to keep indoor conditions tolerable. He shared his critique on the social‑media platform X, comparing the ZDF advice to “writing the target audience to death.” The meteorologist noted that this is not his first challenge to such guidance, having warned against similar heat tips in a 2022 Spiegel interview. His remarks highlight a dispute over public‑health messaging amid an extreme heat episode in Germany.