About Hans-Peter Schmidt Hans-Peter Schmidt leads the Delinat Institute of Ecology and Climate Farming in the Swiss canton of Valais. Books by Hans-Peter Schmidt Terra Preta How the World's Most Fertile Soil Can Help Reverse Climate Change and Reduce World Hunger by (author) Ute Scheub, Haiko Pieplow, Hans-Peter Schmidt & Kathleen Draper foreword by Tim Flannery translated by Jamie McIntosh