A new study warns that a peculiar cold region in the North Atlantic Ocean, termed the 'Atlantic Cold Blob,' is diverting the Indian monsoon. Research led by scientist Nimmagadda Mahendra at Purdue University in the USA indicates that this cold anomaly is caused by weakening Atlantic ocean currents due to melting Greenland glaciers. This phenomenon, in turn, alters Indian monsoon rainfall patterns through atmospheric air waves.Since 1999, this shift has resulted in a 25% increase in rainfall in Northwest India, heightening flood risks. Conversely, the agricultural Indo-Gangetic Plain has experienced reduced rainfall and drought conditions. Scientist Mahendra questioned the reliability of future weather forecasts, stating that if current weather research computers cannot detect these ongoing Atlantic ocean changes, their long-term predictions cannot be fully trusted.
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