SCIENCE INITIATIVE HARIPAD KERALA INDIA

Indian monsoon failure more frequent with warming


Global warming could cause frequent and severe failures of the Indian summer monsoon in the next two centuries, new research suggests. The effects of these unprecedented changes would be extremely detrimental to India's economy which relies heavily on the monsoon season to bring fresh water to the farmlands.
The findings have been published November 6, in IOP Publishing's journalEnvironmental Research Letters, by researchers at the Potsdam Institute for Climate Impact Research and Potsdam University.
They found that as we move towards the end of the 21st, and into the 22nd, century, increasing temperatures and a change in strength of the Pacific Walker circulation in spring could cause more frequent and severe changes in monsoon rainfall.
The Walker circulation usually brings areas of high pressure to the western Indian Ocean but, in years when El Niño occurs, this pattern gets shifted eastward, bringing high pressure over India and suppressing the monsoon, especially in spring when the monsoon begins to develop.Continue....

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