By how much is it estimated the world's food demand will increase over the next 40 years?

The estimation that the world's food demand will double over the next 40 years is based on factors such as global population growth, increased food consumption per capita, and urbanization. As populations grow, particularly in developing countries, there is an expected rise in the demand for food products, driven by a need for more calories and a greater variety of foods. Additionally, as economies improve, individuals tend to shift their diets towards more protein-rich foods, which typically require more resources to produce.

This anticipated doubling of food demand drives the need for enhanced agricultural practices, innovations in food production, and effective resource management. It reflects a significant challenge for the agricultural sector to produce enough food to meet future needs while also addressing sustainability concerns and environmental impacts.

The other options suggest a much larger increase in demand than is currently projected. While the challenges of food production are substantial, the expectations of tripling or quadrupling food demand go beyond the current analyses and projections that are generally accepted by agricultural experts and economic forecasters.