Zarafa Camp, Okavanga Delta, Botswana

Zarafa Camp, Okavanga Delta, Botswana

August 14, 2010 As part of the Blackstone Ranch/National Geographic Innovation Challenge Grant he received, T.H. and Sybille Culhane traveled with their two-year-old son, Kilian, to the Okavanga delta to experiment with building biogas systems out of local water tanks...
Biodigesters at Lake Tanganyika

Biodigesters at Lake Tanganyika

March 4, 2010 In 2010 on a Blackstone Ranch Foundation/National Geographic Innovation Challenge Grant, Solar CITIES Egypt Director Hanna Fathy, from the Zabaleen Trash Recycler’s Community, and Dr. T.H. Culhane, co-founder of Solar CITIES e.V. travelled through...