The Royal Society has published "People and the Planet". The report is offered, not as a definitive statement on these complex topics, but as an overview of the impacts of human population and consumption on the planet.  It raises questions about how to seize the opportunities that changes in population could bring - and how to avoid the most harmful impacts, and aims to serve as a springboard for further discussion and action by national and international Governments, scientific bodies, non-governmental organisations, the media and many others.