It took us 200,000 years to reach 1 billion human beings on Earth, and just 200 years to reach 7 billion. In 2050, when the world population reaches 10 billion people, only 2 billion or so will be living in industrialized countries. For the remaining 8 billion people- more than the present Earth's population- food security will require access to that which grows from the ground and falls from the trees, and most of those vegetables, nuts and fruits depend upon pollinators to reproduce.