India is among the 'extreme risk' countries where economic impacts of climate change will be most felt by 2025, according to a report.

In its sixth annual Climate Change Vulnerability Index, risk consultancy firm Maplecroft revealed the countries most likely to suffer from the effects of warming climates by 2025.

The report revealed that Bangladesh, Guinea-Bissau and Sierra Leone have the most 'extreme' risk rating. Of cities around the world, Dhaka, the capital of Bangladesh, and the Indian metropolis of Mumbai are the most at risk of being impacted by climate change, the Huffington Post reports.

To come to the conclusion, researchers evaluated 193 countries on three factors: the capacity of nations to combat the effects of climate change, exposure to extreme weather events and sensitivity of populations to this exposure in areas such as health and agricultural dependence.