Climate concerns as world population surges past 8 billion people

Globally, the 8 billion population milestone represents 1 billion people added to the planet in just the last 11 years

Pedestrians in downtown Tokyo. Picture: (AP Photo/Eugene Hoshiko

The world population surged past 8 billion people on Tuesday, the United Nations said, warning that more hardship is in store for regions already facing resource scarcity due to climate change.

Whether its food or water, batteries or gasoline, there will be less to go around as the global population adds another 2.4 billion people by the 2080s, according to UN projections.