What is the optimum population of the world? It is certainly not the maximum number that can be squeezed onto the globe by eradicating every species of plant and animal that cannot be eaten. The ...

Kids are OK, but too many of them scare Sir David Attenborough. The near-green god expects to charge up the dormant population debate, having just become a patron of the Optimum Population Trust ...

Legendary filmmaker, broadcaster, and conservationist, David Attenborough has become a patron of the group Optimum Population Trust (OPT). The organization’s goal is to use education and policy to ...

The Optimum Population Trust (OPT) is a registered United Kingdom charity, think tank, and campaign group concerned with the impact of population growth on the natural environment, specifically ...