Destroying planet in the process.. NOTHING is fucking free.. wake up.. It have costs. Energy and waste (waste needs to be reproceesed so energy again).

If you take a look how much energy is put into producing 1kcal of food, you will see that its negative. We put around x6 more that we get (diesel, syntetic fertlizers, water pumping, etc). This is because we have cheap energy, like fossil fuels.. Unfortunatelly, it have hidden costs smartasses didnt anticipate.