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India's Summers Turn Deadly: Heat Crisis Worsens
23 May
Summary
- India's summers are becoming hotter, more humid, and dangerously warm at night.
- Heatwave frequency and duration have increased across core heatwave zones.
- Nighttime temperatures are rising, increasing heat stress, especially in urban areas.
India is experiencing a relentless and increasingly dangerous heat crisis, with summers extending beyond scorching afternoons into dangerously warm nights. A study by Climate Trends indicates a clear trend of hotter and more hazardous summers over the past decade. Research utilizing IMD data shows that heatwave frequency has increased, with durations lengthening by 0.44 days per decade in heatwave-prone regions.
Furthermore, India's average night-time temperatures are rising by about 0.21°C per decade. This warming trend, coupled with an increase in relative humidity, amplifies heat stress. Core heatwave zones, including states like Punjab, Haryana, and Rajasthan, are particularly affected by hot north-westerly winds. Meteorologists note that these conditions are exacerbated by human-caused climate change, leading to hotter background temperatures and higher peak heatwaves.
The World Meteorological Organization has identified recent years among the warmest recorded globally. This ongoing heat emergency is reshaping how heat is experienced across India, presenting a significant challenge to public health, the economy, and overall development.
