Can birth control cut CO2 emissions?
IPN News coverage
Channel 4 News
Ms Boin said: "I think poverty is a huge problem and a lot of things we associate with over-population like slums or hunger or lack of access to clean water - we tend to think over-population. Actually a lot of sub-Saharan Africa is under-populated. There is the worst suffering in the world there.
"My problem with this is that it's a gimmick. Reducing fertility rates is not going to address climate change."