"The need to double global food production by 2050 is widely accepted by most food policy analysts, as is the concept of doing it mostly through ‘sustainable intensification’ on current cropland. ...
Farmers use land, water, air and technology to produce food. Over recent decades the developed countries of the world have become proficient enough at food production and output of other products that can be traded for food that consideration can now be given to devoting potential farmland to other uses. That has caused a shift in interest groups when food production issues are addressed.
Researchers with an interest in the trade-offs for land used for food versus land for environmental uses now have a seat at the food policy table. Their most logical allies are farmers and ranchers with modern technology that will increase output per unit of inputs to meet the food needs of the world population in 2050 without requiring the use of all the land that could potentially grow food.
The analysis supports the presumption that much of the additional food needed to have a well-fed global population in 2050 can be met from existing cropland. The challenge still remains on how to transfer the technology from the areas where it is currently used to those areas with ‘underperforming landscapes’."