Europe’s summer heat has set a new benchmark for danger, according to the European Union’s Copernicus Climate Change Service (C3S). The agency says that just over half of the continent – 52% – experienced “very strong” heat stress at various points during the season, the highest proportion ever recorded.

What “very strong” heat stress means

C3S defines very strong heat stress as conditions that feel like a temperature of at least 38 degrees Celsius (100 °F) when combined with high humidity. Under such circumstances the human body cannot cool itself effectively through sweating, leading to a rapid rise in heart rate and the potential for nausea, dizziness, and even heat stroke, a life‑threatening condition.

Geographic spread and record‑setting summer

Western Europe saw its hottest summer since systematic records began, logging very strong heat stress on 13 separate days. The widespread nature of the heat stress means that many regions, from the Mediterranean coasts to the inland plains, were exposed to dangerous conditions.

Health risks for vulnerable groups

The agency warns that outdoor workers, older adults, and people with pre‑existing conditions such as cardiovascular disease or diabetes are especially susceptible. Heat‑related illnesses can quickly become severe without prompt medical attention.

Environmental impacts beyond health

In addition to human health concerns, Europe’s rivers recorded their lowest flows in more than three decades, a sign that the heat wave is straining water resources across the continent.

Climate change context

Scientists from the World Meteorological Organization note that human‑caused climate change has made Europe the world’s fastest‑warming continent. The record‑high share of very strong heat stress underscores the accelerating impact of a warming climate on everyday life.

What can be done?

Public‑health officials stress the importance of staying hydrated, limiting strenuous outdoor activity during peak heat hours, and checking on vulnerable neighbors and family members. Employers are urged to provide shade, cooling breaks, and adequate water for outdoor laborers.

As the continent moves into cooler months, experts say the data from this summer will inform future heat‑wave preparedness plans and reinforce the need for policies that address the root causes of climate change.

Original reporting: Appleton, WI News Feed (HLL/CB) — read the source article.