Fixing broken food systems: when citizens drive both change and research
Youris
Last updated: April 28, 2026
Global food systems are a major contributor to greenhouse gas emissions, accounting for over one-third of the total. A report by Chatham House identified them as the leading cause of these emissions in 2021. This highlights the significant environmental impact of how food is produced, processed, transported, and consumed worldwide.
- The food system's contribution to greenhouse gas emissions is substantial, exceeding the combined emissions from all forms of global transportation.
- Livestock farming, particularly beef production, is identified as a significant driver of deforestation and methane emissions.
- The cultivation of crops, especially rice and the use of fertilizers, also contributes substantially to emissions.
- Food loss and waste further exacerbate the problem, with a significant portion of produced food never being consumed.
- Shifting to more sustainable diets, reducing food waste, and implementing greener agricultural practices are crucial for mitigating the environmental impact.
- Policy interventions are necessary to encourage these changes and promote a more resilient and sustainable global food system.
- The report emphasizes the urgent need for action to address the environmental consequences of current food production and consumption patterns.
