Modeling studies conducted by the Potsdam Institute for Climate Impact Research have indicated that over 500 million people will be affected by increasing water scarcity if average of global warming is at 2 degree Celsius.

The report suggests that 8% more population will be affected by dearth of water if global warming is at 2 degree Celsius. The International Climate negotiators have set the limit of global warming at 2 degrees Celsius.

However, if there is no check or control on the climate change, the amount of population affected by water scarcity could reach up to 13%, in case the global warming increases at 5 degrees Celsius.

"Our findings support the assertion that we are fundamentally destabilizing our natural systems, we are leaving the world as we know it," said Wolfgang Lucht, Study Co-Author.

The report issued by the institute suggests that over 1.3 billion people all across the world are staying in regions with water scarcity. It further suggested that there will be large amount of changes in the ecosystem at 2 degrees Celsius climate change and at 5 degrees global warming the regions affected all over the world will be a huge 74%.

For this modeling study as many 152 scenarios were considered with 19 climate change models.