We’d like to show the side of the world you don’t normally see on television.
I don't believe it is just about population growth, i believe it is about how we use our vital resources.
Since the average lifespan across the planet is now about 60 years, that means it would take about 60 years to reduce the population to zero, if there were NO additions in the meantime, i.e. zero births, not zero growth (where growth is births minus deaths).
You pointed out excellent points on growth and the average life span...thanks for enlightening. Also, enjoyed Hans Rosling's lecture on world development using statistics.