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Climate change is leading to floods in Bengaluru, Chennai and in the state of Andhra Pradesh in recent months. DW.com looks at the situation there. Studies show India' climate vulnerability. Southern regions are most vulnerable according to these studies, yet about 80% of India's population live in districts highly vulnerable to drought, flooding and cyclones. Bonn based Germanwatch says a surge in extreme events is noticeable since 2005 in India, and is triggered primarily by landscape disruptions. 

Indian experts say land restoration and rehabilitation is one approach. Another is letting the water flow and redoing irrigation structures to capture rain- linking rivers to ponds, lakes and ditches so that water is free to flow. 

Weather experts point out that surface temperature of Arabian sea has risen from 27 degrees Celsius (80 degrees Fahrenheit) to 29 degrees causing more frequent formation of low pressure areas and resulting in heavy rains. This DW.com report looks at weather patterns and extreme events around the world including in Madagascar and Brazil, Greece and British Columbia.