For a long time we humans have been pre-occupied with how crowded our planet is…it’s a concern that stretches back to the pre-industrial era. But, what if the trend for the world isn’t to ‘too many’ people – but to fewer? Darrell Bricker is the global CEO of Ipsos Pubic Affairs (so he tracks trends of a living). With co-author John Ibbitson, Bricker explores the issue of population trends in the new book “Empty Planet; The Shock of Global Population Decline”