COPENHAGEN: Population and climate change are intertwined but the population issue has remained a blind spot when countries discuss ways to mitigate climate change and slow down global warming, according to Zhao Baige, vice-minister of National Population and Family Planning Commission of China (NPFPC) .

"Dealing with climate change is not simply an issue of CO2 emission reduction but a comprehensive challenge involving political, economic, social, cultural and ecological issues, and the population concern fits right into the picture," said Zhao, who is a member of the Chinese government delegation.

Many studies link population growth with emissions and the effect of climate change.