THESE 2 Indian cities are at risk due to sea level rise

A new study has shown that two Indian cities, Tamil Nadu's capital Chennai and West Bengal's capital Kolkata are at risk if sea level rises. In December last year, Union Minister Jitendra Singh had said that the average sea level rise increased from 1.3 mm/year between 1901-1971 to 3.7 mm/year between 2006-2018 Coming to the latest study, it showed that internal climate variability could increase sea level rise in some locations by 20-30 percent more than what would result from climate change alone, exponentially increasing extreme flooding events. The study was conducted looked at the effects of natural sea level fluctuations on the projected rise due to climate change, it said. Internal climate variability will also increase sea level rise along the west coasts of the United States and Australia, it said. NCAR scientist Aixue Hu, who co-authored the paper said, “The internal climate variability can greatly reinforce or suppress the sea level rise caused by climate change.” "In a worst-case scenario, the combined effect of climate change and internal climate variability could result in local sea levels rising by more than 50 per cent of what is due to climate change alone, thus posing significant risks of more severe flooding to coastal megacities and threatening millions of people," said Hu.