in a milestone for humanity, the global population hit 8 billion on Tuesday after having added a billion people in the last 12 years. 

Pic Cre- social media 

India was the largest contributor to the milestone, having added 177 million people 

Pic Cre- social media 

India is expected to surpass China as the world's most populous nation by next year 

Pic Cre- social media 

The UN Population Fund (UNFPA), in a special graphic to mark the global population reaching eight billion 

Pic Cre- social media 

Asia and Africa has driven much of this growth is expected to drive the next billion by 2037 

Pic Cre- social media 

while Europe's contribution will be negative due to declining population. 

Pic Cre- social media 

The world added a billion people in the last 12 years. UNFPA said that as the world adds the next billion to its tally of inhabitants, China's contribution will be negative.  

Pic Cre- social media 

India, the largest contributor to the 8 billion was the second largest contributor  

Pic Cre- social media