E tanto costará traballar nisto en vez de facer máis grande a balsa de lodo da bauxita?

https://www.lavanguardia.com/andro4all/tecnologia/logran-convertir-el-lodo-rojo-en-acero-en-tan-solo-diez-minutos-es-un-duro-golpe-contra-el-cambio-climatico

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