If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...
Grace Gitiha making briquettes. She's dedicated to sourcing her raw materials sustainably. [Courtesy] Almost a decade ago, Grace Gitiha took a leap of faith into the world of briquette-making, little ...
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