Heatwave in India – Reasons, effects and the way forward

From Current Affairs Notes for UPSC » Editorials & In-depths » This topic
Context: Heatwaves are common in India during May and June but summer began early this year with severe heat conditions being consistently reported over large parts of the country. Temperatures in parts of north India are expected to cross 45 degrees Celsius.
Heatwave
- IMD announces a heatwave when the maximum temperature of a place crosses 40 degrees Celsius over the plains, 37 degrees Celsius along the coast and 35 degrees Celsius in hilly areas.
- A severe heatwave is declared when the recorded maximum temperature of a locality departure from normal is over 6.4 degrees Celsius.
- Also, if an area records over 45 degrees and 47 degrees Celsius on any given day, then the IMD declares heatwave and severe heatwave conditions, respectively.
Why do some regions experience heatwaves?
- According to IMD, if there i
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