A recent study from the Global Footprint Network concluded that if global consumption continues at the current rate, we would need 1.6 planets Earth to satisfy the demands of humanity. Specifically, Puerto Rico would need a territorial extension 26 times its size in order to harvest the food needed to support its population and to be assimilate the contaminants generated by the 3.5 million inhabitants. 

For the full artcile, please refer to the spanish vesion of this site.