Solar CITIES

Hortolandia Emerges as an Energy and Environmental City in Brazil

By Mario Osava
Almost everything seems new or under construction in the southern Brazilian city of Hortolandia, from its wide avenues and cable-stayed bridge to its large buildings and riverside parks.

Cairo’s Poor Convert Kitchen Waste Into Fuel Savings

By Cam McGrath
The bio-gas digester on the roof of Hussein Farag's apartment in one of Cairo's poorest districts provides a daily supply of cooking gas produced from the kitchen waste his family would otherwise discard in plastic bags or empty into the clogged sewer below his building.
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