Janet Awimbo, a Kenyan ecologist, presented the first copy of the booklet 'Imagining sustainability' to HRH Prince Willem-Alexander yesterday. In the booklet, which is a co-production of Both ENDS and Cordaid, are seven interviews with thinkers from the southern hemisphere. They all envision a green and fair economy in the future. Awimbo and the Prince of Orange met at the Rio aan de Maas event in Rotterdam. At the event, Both ENDS also organised a workshop where Janet Awimbo, Paul Wolvekamp (Both ENDS) and Maarten Hajer (Bureau for Environmental planning) spoke with each other and with the audience.