Six states see high fatalities due to extreme weather, floods top reason: Study

All these events during the five decades collectively led to an estimated economic loss to the tune of $99 billion, of which floods accounted for $60 billion and cyclones accounted for $ 22 billion.

The most frequent event was flooding, which, along with heat waves and lightning, remained the top killer among extreme weather events in the country, the study published in the journal Weather and Climate Extremes of Science Direct highlighted.

As a result, deaths associated with floods accounted for 46.1 per cent of deaths caused by extreme weather events, making it further significant given that previous studies have shown a rise in extreme rainfall events along the central India regions, observed between 1950 and 2000.

According to the study, 28.6 per cent mortality was due to tropical cyclones followed by heat waves – 12.3 per cent, cold waves – 6.8 per cent and lightning – 6.3 per cent. Heat waves mostly affected Uttar Pradesh, Odisha, Bihar, and Rajasthan, whereas cold waves were common over Bihar, Uttar Pradesh and Jharkhand.

But an improved forecasting system and observational networks supported by information dissemination helped bring down the fatalities significantly. The decadal variation mortality rates show that deaths due to cyclones, floods and cold wave had decreased by 94 per cent, 48.5 per cent and 17.1 per cent, respectively.

The mortality rates, however, showcased an increasing trend with respect to heat waves, 62.2 per cent, and lightning, 52.8 per cent, during the last five decades.

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