A severe heat wave has gripped northern India, with temperatures approaching 48°C and authorities scrambling to protect millions of residents from the dangerous conditions. The India Meteorological Department has warned that extreme temperatures are expected to persist in the coming days, particularly across the northern plains, where New Delhi recorded temperatures close to 45°C. In Banda, a city in the central Indian state of Uttar Pradesh, the mercury peaked at 48.2°C earlier this week — among the highest readings seen this season.

The extreme heat has prompted wide-ranging emergency measures. Authorities in New Delhi opened temporary cooling shelters equipped with fans, air coolers, drinking water and oral rehydration salts for residents and tourists alike. Health officials have urged people to stay indoors during the hottest part of the day and to seek medical attention if they experience symptoms such as dizziness or high fever. In Uttar Pradesh — India's most populous state, stretching across the central Gangetic plains — roads and markets shut during afternoon hours, local schools suspended classes, and districts announced early summer holidays. Rural farmers, unable to pause their work entirely, have resorted to shifting their activities to nighttime hours to avoid exposure to the midday heat.

The current crisis is part of a broader and worsening pattern. Climate researchers note that India has experienced increasingly frequent and severe heat waves over the past decade, consistent with global warming trends. Meteorological data shows that all of India's hottest recorded years have occurred within the last ten years, underscoring how baseline temperatures have shifted significantly in a relatively short period.

The heat wave matters beyond its immediate human toll. Northern India is home to hundreds of millions of people, many of whom work outdoors in agriculture or the informal economy and have limited access to cooling. Successive years of extreme heat strain public health systems, reduce agricultural productivity and deepen economic inequality, as those least able to adapt bear the greatest burden. The persistence of such events — and the speed at which records are being broken — is increasingly cited by scientists as evidence that the window for limiting the worst impacts of climate change is narrowing.