The next debate, Green cities in a green economy – how to pioneer a sustainable transition? will be broadcast on 14 March 2012.
Find out more about the theme for the debate
The first Earth Debate, Ecosystem economics – can we put a price on nature? took place on 25 January 2012.
Watch a video of the first Earth Debate
Archive footage of the debate Beyond GDP – how can we measure progress? will be available online from 24 February 2012.