(CNN) – Nearly a third of the world’s economic output will come from countries facing high risks from the impact of climate change with 12 years.

Those findings are published in the Annual Climate Change Vulnerability Index, produced by UK-based risk analysis firm Maplecroft.

According to the index, Bangladesh was the most-vulnerable country and its capital Dhaka the most vulnerable city.

The area is susceptible to flooding, cyclones, and landslides, and doesn’t have strong institutions in place to address the problems.

Four other cities categorized as facing “extreme risk” from climate change impacts are also located in Asia, Mumbai and Kolkata in India; Manila, in the Philippines, and Bangkok, Thailand.