 In his role of UNESCO Goodwill Ambassador , Jarre performed a concert named Water for Life in Morocco , on 16 December 2006 , to celebrate the year of desertification in the world . The performance was in front of the Erg <unk> Dunes of <unk> , in the Sahara . A free event , it was attended by about 25 @,@ 000 people . Images of water and the environment were projected onto nine vertical screens , held in place by sand which was watered to keep it hard . Several permanent drinking fountains were built on the site , along with a permanent electricity installation . Jarre was accompanied by over 60 Moroccan artists . 
