Food systems transformation would reshape global agriculture

Area of Science:

• Global food systems analysis
• Sustainable agriculture
• Planetary health

Background:

• Food systems significantly contribute to environmental degradation and poor health outcomes globally.
• Projected population and income growth may worsen these challenges.
• There is a growing call for transforming food systems towards sustainability and health.

Purpose of the Study:

• To explore the scale and distribution of agricultural impacts from transforming food systems.
• To model the effects of adopting healthy diets, improving productivity, and halving food waste by 2050.

Main Methods:

• Utilized a multimodel ensemble of ten global economic models.
• Simulated a transformation scenario for food systems.
• Analyzed changes in agricultural land, production, and economic value by 2050.

Main Results:

• A median decrease of 6% in agricultural land by 2050.
• Agricultural production value projected to be 26% lower, with livestock value significantly decreasing.
• Value of vegetable, fruit, nut, and legume production expected to increase by 23%.

Conclusions:

• Food system transformation necessitates a fundamental restructuring of global agriculture.
• Policy interventions are crucial to navigate the economic impacts and leverage benefits like improved health and reduced environmental pressure.
• Results are contingent on the specific policies implemented to achieve the transformation scenario.