The project Gardens of Knowledge started 2013 in Egypt and Germany. Currently earthcollaborative unites five ongoing projects in Egypt, Germany, Saudi Arbaia and Ethiopia.
Members: Heba Khalil (f), Architect, Planner, Educator, Cairo – Christoph Hesse (m), Architect and Urban Designer, Berlin and Cairo  – Nicola Borgmann (f), Architect, Urban Planner, Art Historian, Munich and Addis Ababa – Parisa Kloss (f), Climatologist and Architect, Düsseldorf and Tehran   – Kristien Ring (f), Architect, Environmentalist, Educator, Berlin and Pitigliano – Saady Badawy (m), Botanist, Ecologist, Cairo