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Agricultural minerals: feeding the world

In ‘An Essay on the Principle of Population’ in 1798, the English economist and cleric Thomas Malthus famously wrote that population, when unchecked, increases geometrically (closely related to what today’s mathematicians call exponential growth), while subsistence increases only arithmetically (ie, linear growth).

Agricultural minerals: feeding the world Agricultural minerals: feeding the world Agricultural minerals: feeding the world Agricultural minerals: feeding the world Agricultural minerals: feeding the world

Danakali's Colluli project is located in the Danakil Depression region of Eritrea, approximately 230km by road south-east of the port of Massawa

"The power of population is so superior to the power in the earth to produce subsistence for man, that premature death must in some shape or other visit the human race," Malthus wrote, concluding that