A key part of Principal Voices is a series of four debates taking part around the globe, involving many of the thinkers who are contributing to the project.

Once the debates take place, you will be able to read highlights and transcripts of the discussions on the Principal Voices site.

	Urbanization: April 27 in New Delhi, India. Read about the debate Read key quotes from the debate Read a full transcript
	Collaborative Corporation: September 6 in London, UK. Read about the debate Read key quotes from the debate Read a full transcript
	Alternative Energy: December 5 in San Francisco, U.S. Read about the debate Read key quotes from the debate Read a full transcript
	Environment: February 28 2007 in Sydney, Australia. Read about the debate Read key quotes from the debate Read a full transcript