By how much does food production need to increase over the next 30 years?

The correct choice indicates that food production needs to increase by 70% over the next 30 years to meet the demands of a growing global population and to address challenges related to food security, climate change, and changing dietary patterns. This estimate is based on projections that take into account the expected growth in population, which is anticipated to rise significantly, particularly in developing countries where food demand is increasing even more rapidly.

This substantial increase is necessary to ensure that there are sufficient resources to feed everyone adequately, considering both the increase in the number of people and the expected changes in consumption habits. The dynamics of agriculture, including sustainability practices, land availability, and technological advancements, also play a crucial role in achieving this target. Understanding these factors helps underline the urgency behind aiming for a 70% increase in food production, as it represents both a realistic and necessary goal to foster global food security in the years to come.

The other options propose lower percentages, which may underestimate the actual needs based on demographic and environmental trends. Therefore, selecting the 70% increase effectively captures the scale of the challenge ahead.