A series of unprecedented high-temperature events has occurred across Europe and North America during May 2026, coinciding with the emergence of a super El Niño phenomenon.

2026年5月期間，歐洲與北美洲發生了一系列前所未有高溫事件，且正值超級聖嬰現象出現之時。

The European theater has experienced a significant thermal anomaly driven by a high-pressure 'heat dome' that sequestered warm air from North Africa. In the United Kingdom, the Met Office recorded a provisional all-time May maximum of 34.8°C at Kew Gardens, representing a substantial deviation from historical norms. This event precipitated the issuance of the UK Health Security Agency's first amber heat-health alert of 2026, as the rapid onset of heat posed risks to vulnerable populations and strained healthcare infrastructure. Similarly, France and Spain reported numerous record-breaking temperatures, with French authorities activating heatwave alerts for the first time in May since 2004. These conditions were associated with adverse health outcomes, including reported fatalities during athletic competitions in Paris and Lyon.

歐洲地區經歷了顯著的熱異常，是由一個將北非暖空氣封鎖的高壓「熱穹頂」所驅動。在英國，氣象局記錄到邱園的暫定5月最高溫達34.8°C，與歷史常模相比呈現大幅偏差。此事件導致英國健康安全局發布了2026年首個琥珀色高溫健康警報，由於高溫迅速襲來，對弱勢族群構成風險並使醫療基礎設施承壓。同樣地，法國與西班牙報告了 numerous 破紀錄的高溫，法國當局自2004年以來首次在5月啟動熱浪警報。這些情況與不良的健康結果相關，包括在巴黎與里昂的體育競賽期間有死亡病例報告。

Simultaneously, North American regions have exhibited extreme meteorological volatility. Eastern Montana recorded temperatures exceeding 100°F, while the Canadian Prairies experienced an abrupt transition from winter conditions to temperatures surpassing 30°C. In British Columbia, a depleted snowpack—recorded at 11% of normal on Vancouver Island and 16% in the Okanagan—has heightened the probability of drought and wildfire activity. These regional anomalies are contextualized by the development of a 'super El Niño,' defined by sea surface temperatures in the tropical Pacific exceeding the long-term average by more than two degrees Celsius. Experts suggest that this phenomenon, compounded by anthropogenic climate change, is increasing the frequency and intensity of extreme weather, including the potential for localized flooding in Canada and the degradation of Pacific coral reef ecosystems due to thermal stress.

與此同時，北美地區表現出極端的氣象波動。蒙大拿州東部記錄到溫度超過100°F，而加拿大草原地區則經歷了從冬季氣候到超過30°C的驟然轉變。在英屬哥倫比亞省，積雪量嚴重不足——溫哥華島記錄為正常水平的11%，奧肯那根則為16%——這增加了乾旱與山火活動的可能性。這些區域性異常背景為「超級聖嬰現象」的發展，其定義為熱帶太平洋海面溫度比長期平均值高出兩攝氏度以上。專家指出，此現象在人為氣候變化的疊加下，增加了極端天氣的頻率與強度，包括加拿大局部地區可能發生洪水，以及太平洋珊瑚礁生態系統因熱壓力而退化。

Global temperatures remain elevated, with institutional warnings emphasizing the necessity of infrastructure adaptation to mitigate the risks of increasing thermal extremes.

全球溫度維持在高位，機構警告強調必須進行基礎設施適應，以降低日益增加的極端高溫風險。