Faced with the reduced supply of urea, the capitalist market has a solution.
The pun Oro - Orina Is lost in translation: Gold - Urine.
The cartoon is of a pawnbroker's that previously bought gold items, with a queue of people waiting to sell their piss.
Not so far fetched!
From @revista

#Hormuz #urea

@revista
Wait til they learn about the phosphate problem and where they can get it (bones).
Espere hasta aprenden del problema de fosfato y adonde se puede lograrlo (huesos).
@markhburton @revista Yeah. And you can get lots of nitrogen from any living body as well. Proteins are built on nitrogen.