"Less than a decade ago researchers discovered an ancient West African method of adding charcoal and kitchen waste to highly weathered, nutrient poor tropical soils can transform the land into enduringly fertile, carbon-rich black soils which the researchers dub 'African Dark Earths'.~Science Daily The scientist also found this type of earth In Brazil and it was Formerly known as Amazonian Dark Earth. The significance of these soils lies in the amount of Carbon that are in them. In West Africa t