An open access, peer reviewed, interdisciplinary journal exploring all aspects of the relationship between human numbers and environmental issues.

Editorial introduction

Vol. 2, No. 1.

David Samways


Limits to growth: human economy and planetary boundaries

Kerryn Higgs


How many people can the Earth support?

Joel E. Cohen


Reflections on the current immigration debate in the UK

Jonathon Porritt and Colin Hines


Beyond the one-child policy: a response to Conly

Julian Roche

Book review

Food Scarcity by Raoul Weiler and Kris Demuynck

Ugo Bardi