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"A Swiss agronomist, Mr. Haller planned and carried out for the Bamburi Portland Cement Company the rehabilitation of their strip-mined coral limestone quarries in Kenya.
"To date 200 hectares of quarry wasteland have been transformed into a thriving self-sustaining and economically viable ecosystem with a vast variety of wildlife. Over 150 species of indigenous trees are succeeding the original timber monoculture." wiki
In August 2004 when Kenya Wildlife Service board chairman Colin Church was suspended indefinitely "in the wake of a three-week-long controversy that followed recommendations that the service privatises its income-generating centres." Board member, Dr Rene Haller, was appointed acting chairman. 
- 1987 Global 500 Roll of Honor by the UNEP
- Founder, Baobab Trust
- Founder, Haller Foundation
- Trustee, Kenya Sea Turtle Conservation and Management Trust