sentence: Solar cookers are an inexpensive and environmentally sound alternative to traditional ovens.
sentences_before: Solar cooking uses the sun as the source of energy instead of standard cooking fuels such as charcoal, coal or gas.
sentences_after: They are becoming widely used in areas of the developing world where deforestation is an issue, financial resources to purchase fuel are limited, and where open flames would pose a serious risk to people and the environment.
concept_name: solar cooker
headings: Solar energy Types of technologies Solar cooking
categories: Astrophysics Solar energy Solar power