‘City could fall prey to flooding by 2070’

  • Badri Chatterjee, Hindustan Times, Mumbai
  • Updated: May 20, 2016 00:26 IST

Expected to face coastal flooding by 2070, Mumbai’s projected population of 11.4 million will be left vulnerable, according to a study released on Monday.

A UK-based non-profit organisation, Christian Aid ranked 20 cities in terms of potential population vulnerable to coastal flooding by 2070, as part of a study, ‘Act Now or Pay Later: Protecting a billion people in climate-threatened coastal cities’.

According to projections supported by the Intergovernmental Panel on Climate Change (IPCC), Kolkata and Mumbai, both megacities, top the list, with Kolkata’s population expected to be 14 million in 2070.

“Bangladesh’s Dhaka will sit in close third place with 11.1 million,” the report added.

The report compared the populations of cities in 2010 to predicted populations by 2070. Mumbai’s population in 2010 was pegged at 2.7 million.

“By 2060, more than a billion people worldwide are likely to confront coastal flooding due to sea level rise, storm surges and extreme weather, with the majority of those people living in major cities throughout Asia,” concluded the study.

Along with predictions regarding climate change for coastal cities, the study incorporated the potential losses from flooding that each city will face by 2070.

Miami was ranked first, expected to incur $ 3.5 trillion in damages, while Mumbai ranked sixth, projected to have $1.5 trillion in assets exposed to flooding.

“The cities facing the most severe impacts are in countries with high contributions of carbon emissions,” said Dr Alison Doig, co-author of the report, which found India, Bangladesh, China and USA to be the biggest greenhouse gas emitters.

The report was published ahead of the World Humanitarian Summit that will take place in Istanbul on May 23.

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