थे कामे थे फर्मेद थे हर्वेस्तेद थे लेफ्ट.

The soil of a rain forest is typically poor and most of the nutrients in that environment are held with in the living biomass. Human beings start to represent a significant part of the earths biomass and nutrient total. If humans are being farmed , harvest time could be soon.
Who or what could be farming us ?
Perhaps the aliens are already here and have been farming the entire global and intergalactic system and ecosystems. Not David Icke's reptilians this time , closer to Terrence McKenna's space traveler mushrooms.
Fungi would be some of the last life to survive in the event of global blackout due to catastrophic events. They would consume the earths biomass before setting spore possibly to another galaxy to germinate and farm a distant ecological niche.
Master of the Universe