Still no expert.
For now all of our food comes from plants.
We eat plants to live.
Animals also eat plants to live.
Many of us also eat animals that eat plants.
As with our trees, we are not able to make plant food fast enough to keep on feeding us.
Even with the help of the Chemical company and their chemical it will not be possible.
One could say that it could become a steal-mate doom?
Because the Chemical companies are poising us so we will not be living as long and our ancestors did!
Un-less or until we invent a star ship replicator for parts and food soon the human race is doomed. Because it (the human race) is dooming itself!