As a serial social entrepreneur Jonathan Greenblatt is the co-founder of Ethos Water and the former CEO of Good Magazine. Greenblatt participates on several corporate and nonprofit boards, including RESTORE Products, the African Leadership Foundation, KaBOOM!, and water.org. Creating a business that was sustainable and profitable, Greenblatt has been credited to revolutionize the industry of bottled water and qualified as an acknowledged thought leader on corporate social responsibility, ethical branding and social entrepreneurship.

Sustainable development has been the red line in Kitty van der Heijdens'carreer. After working for the UN, she is now director at the Ministry of Foreign Affairs and ambassador for sustainable development. She will represent the Netherlands in the upcoming Rio plus 20 earth Summit in June 2012. An international conference organised by the UN 20 years after the first UN conference on sustainable development in Rio. At TEDxHaarlem Kitty van der Heijden will take us on a journey through international sustainable development conferences.