The NY Times tells us that the demand for guano (bird droppings) is rising due to the petroleum-related cost rise for synthetic fertilizer and guano’s increased use as a fertilizer for organic foods. The article gives a very interesting narrative of the effect of guano mining on Peruvian history and the natural environment of the area.
You can’t blame the Peruvians for clamping down on control of this resource. With economic conditions as they are, what else were they guano do?
The Times also is carrying a tangentially related article illustrating the current economic climate: As Oil Prices Soar, Restaurant Grease Thefts Rise.