This is admirable, but doing the math I don't think it's worth the energy. $6 is what they get for 25 liters of pee. $6 buys you 120 calories at 5 cents per c

This is admirable, but doing the math I don't think it's worth the energy. $6 is what they get for 25 liters of pee. $6 buys you 120 calories at 5 cents per calorie (1). It takes 24 calories to lift one kg one meter (2) 25 liters of pee is 25 kg, so it takes 600 calories to lift 25kg of pee 1 meter. So in order to earn enough money to cover the needed food intake to move the pee you could only lift each batch of pee 0.2 meters. Put another way, if one moves each batch of pee more than 0.2 vertical meters total during the transport process (or equivalent energy consumption) then there is a net loss, they would have eaten more food energy than is saved. This is assuming that the $6 you get for a batch of pee is within an order if magnitude or so from its true value. I.e a batch of pee is worth to the world between 6 and 60 dollars given the market price they're paying. 1 - https://streets.mn/2018/09/05/what-is-the-cost-value-of-a-calorie/ https://streets.mn/2018/09/05/what-is-the-cost-value-of-a-ca... 2 - https://answers-to-all.com/language/how-many-calories-does-it-take-to-lift-1kg-1m/ https://answers-to-all.com/language/how-many-calories-does-i...