Underground Agriculture could possibly provide the means to solve world hunger. Underground agriculture can be achieved by firelight at a temperature to where the firelight emits red and blue light, necessary for crops to reproduce. Anerobic digesters can provide the means for anologue and monetarily sound means to grow these underground crops, in a large setting the worlds deforestation can be addressed as well. Structures built underground can provide the ability to double, triple whatever multiplication we want to have for food production as well as provide a 100 percent climate controlled environment for optimal crop growing conditions in any condition on earth and potentiall anywhere else humans go and potential exploration of crop parent recycling, so It may be possible not to have to replant crops if optimal growing conditions are achieved.
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