Sophia Ngwira fries tomatoes and onions on a solar cooker outside her house. Traditionally, food is cooked on open wood fires, but firewood has become increasingly scarce and difficult to gather because of measures to prevent deforestation in the area around South Luangwa National Park. Solar cookers can be used most of the year, apart from the three-month rainy season. This cooker boils a litre of water in eight minutes.

Sophia Ngwira fries tomatoes and onions on a solar cooker outside her house.
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