But heat waves are rising not just on land. Globally, marine heat waves are registering a growing trend. A recent study titled Future Projections for the Tropical Indian Ocean has found that the Indian Ocean is warming rapidly and moving towards a state of near-permanent marine heat waves, with 220-250 days of heat waves projected in a year until 2050. https://thewire.in/environment/indian-ocean-headed-for-a-near-permanent-state-of-marine-heatwave 

The findings of this new research, led by Roxy Mathew Koll, scientist with Climate Research Lab, Indian Institute of Tropical Meteorology (IITM), Pune, are published in a recent book, The Indian Ocean and its Role in the Global Climate System, released on April 26.

“In the present-day climate scenario, where we are experiencing 1.2-degree Celsius warming, marine heat waves have already emerged in the Indian Ocean and are rising; at present, they range up to 20 days a year,” said Koll, talking to Mongabay India about the implications of prolonged marine heatwaves in the Indian Ocean. “But, by 2050, we are expected to breach the two-degree Celsius mark, and these heatwaves are likely to increase to 220-250 days, which is two-thirds of a year. We are calling it a permanent heatwave state for the Indian Ocean,” he said.

by Nidhi Jamwal

30/04/2024

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