Air temperature tells only part of the story. New research shows why two days with the same reading can place dramatically different levels of stress on the human body

As temperatures climb, passengers on parts of Athens’ public transport network face stifling conditions, with aging metro trains and overcrowded vehicles turning daily commutes into an ordeal

Greece faced particularly severe conditions, with an estimated 85% of the population exposed to extreme temperatures approaching or surpassing 40°C. The highest recorded temperature reached 44°C.

European Union scientists say 2025 may rank as the world’s second or third hottest year, marking three consecutive years above 1.5°C over pre-industrial levels and highlighting the accelerating impacts of climate change

Across Europe, August’s heat was relentless. Spain endured a record 16-day heatwave, the longest in its history, which health officials estimate contributed to more than 1,100 excess deaths.

For the first time, global temperature increases are anticipated to surpass the 1.5°C threshold, compared to the pre-industrial levels.