Others say that the present 5.7 billion already exceeds the sustainable limit. Food production for humans seems near its peak within the natural limits that exist. That is true for grain, seafood and livestock products. Humanity must place limits on population and use of resources. The rate of population growth must be reduced to zero or become negative.
Humanity is now a global community.
Instead of continuing to emphasize economic growth, emphasis must now be clearly shifted so that meeting basic needs of the human population on a sustainable basis within the resources of Planet Earth, becomes the dominant goal. Written by Donald G. Hanway, Sr. Professor of agronomy emeritus at the University of Nebraska. He served 20 years as department head. That's like three families living in a one bedroom apartment on one family's foodstamps.