Over the past decade sustainable development has increasingly been ado
pted as an objective of government policy, and ''planning for sustaina
ble development'' is now a real-world activity of officials and minist
ries. A survey of conceptual issues, of three environmental economists
' proposals to achieve sustainability, and of initial practical experi
ence in the industrialised countries suggest that planning for environ
mentally sustainable development involves an ambitious attempt to reco
ncile environmental and development objectives. It is argued that to t
he extent that this proves possible it will be a radically disjointed
process involving interaction of many agencies and actors. At the hear
t of the challenge of planning for sustainable development is an issue
of institutional design to which political science, despite the hesit
ancy it has so far displayed to engage with the issue, could yet make
a meaningful contribution.