To mark the new millennium, this year's Reith Lectures are delivered by five different thinkers, each eminent in a different field. At the end of the run, the Prince of Wales presents his own views on the topic in a roundtable discussion with all five lecturers.

The Millennium Reith Lectures deal with one of the most pressing issues of our time - sustainable development. The third lecture is by Sir John Browne.

Sir John Browne is Chief Executive Officer of BP Amoco, Britain's largest company and the third largest oil corporation in the world. He is also a trustee of the British Museum and chairman of Stanford Business School's Advisory Council.

Speaking from Edinburgh, Sir John Browne's lecture examines business. He raises issues of stewardship and responsible management, and demonstrates how governments, industry, economy and individuals interact and interconnect in a dynamic fashion. He believes that business plays a fundamental role in delivering sustainable development through the principle of enlightened self-interest, and argues that technology is the key to tackling the growing threat of climate change without undermining economic growth.