Why Temperature Records Are Being Shattered, Not Just Broken

Scanning the map of western Europe reveals a region gripped by intense heat, with few locations escaping the sweltering conditions. In the United Kingdom, temperatures soared past 35°C on Tuesday, eclipsing the previous May record by more than 2°C. According to the Met Office, such warmth would be extraordinary even during the peak of summer, let alone in spring.

The severity of the situation has drawn sharp reactions from experts. Friederike Otto, a climate science professor at Imperial College London, described the conditions as "absolutely astonishing." Peter Thorne, director of the Icarus Climate Research Centre at Maynooth University in Ireland, went further, labeling the event "mind-bogglingly crazy."

France is simultaneously experiencing an unprecedented early-season heatwave, as reported by Météo-France. The country has seen hundreds of heat records fall. Meanwhile, the island of Ireland surpassed its May temperature record by over 2°C. Neighboring nations, including Germany, Italy, Spain, and Switzerland, are also enduring unusually high temperatures for this time of year.

The immediate driver of this heatwave is a "heat dome"—a high-pressure system that has stalled over Europe, trapping warm air beneath it. However, scientists agree that human-induced climate change, primarily fueled by the combustion of coal, oil, and gas, has significantly intensified these conditions. Data from the Copernicus climate service indicates that Europe has been warming at a rate of 0.56°C per decade over the last 30 years—more than double the global average. While this figure may appear modest, it represents a seismic shift in climate dynamics, rendering heat extremes substantially more severe.

"When we have a heatwave it's happening more severely, because it's on top of a warming climate," Richard Betts, head of climate impacts research at the Met Office and a professor at the University of Exeter, explained to BBC News. He noted that while the trends align with warnings issued 33 years ago, the current reality is more extreme than anticipated. "I've been a climate scientist for 33 years and we're seeing exactly the kinds of things that we were warning back then... [although] these records are perhaps more extreme and coming sooner than we had expected," he added.

Beyond Europe: A Global Pattern

The phenomenon is not confined to Europe. In Delhi, India, temperatures hit 45°C. The pattern of record-breaking heat is evident globally.

In a stable climate, new temperature records should become increasingly rare as more data is collected. The logic is straightforward: breaking a record is more likely after a decade of data than after a century. Erich Fischer, a professor at the Institute for Atmospheric and Climate Science at ETH Zurich in Switzerland, illustrated this with an analogy: "If someone beats a world record in high jump, you would expect them to beat it by one centimetre and not suddenly by 20, 30 centimetres and the same holds for the weather."

Fischer emphasized that when a long-standing record, established over 100 or 150 years, is broken, the margin is typically small. "If the record is broken after 100 or 150 years of measurements, you would have probably expected it to be broken by a tenth of a degree and not suddenly by two degrees or three degrees," he said. However, in a rapidly warming climate, rare weather systems like the current heat dome can result in massive margins. "We're going through a period of very rapid warming, particularly western Europe… so if the same weather events we had in, say, the 1970s [happened again], it will not only be slightly warmer, but it will simply smash the record," Fischer stated.

A Sign of Things to Come

This week’s European heatwave is not an isolated incident, even projecting into 2026. Earlier this year, in March, approximately 30% of active US weather stations set new seasonal temperature records, according to Berkeley Earth, an independent US climate research group. Robert Rohde, the group’s chief scientist, described the margin of these records across the western United States as "utterly absurd."

These record-shattering heatwaves occur in a world that is already approximately 1.4°C warmer on average than in the late 19th Century, a change driven by human activities such as fossil fuel combustion. Looking ahead, global warming could approach 3°C by the end of the century if current government climate policies remain unchanged. This trajectory will inevitably lead to further

Source: BBC News Generated at: 2026-05-27 14:08:50 UTC