Nowhere is the challenge of sustainable development more clear than in the case or energy, which is at the heart of the environment and economy interface, virtually every environmental issue - from a local garbage dump to deterioration of the global climate - has an energy component.

Read more: Looking Towards A Sustainable and Secure Energy Future

Maurice Strong assesses the contrasting performance of governments and peoples since the Earth Summit in an interview with Geoffrey Lean, and outlines priorities for the special session.