Agricultural Shocks and Deforestation in Zambia: New Research Unveils Climate Feedback Loops

Strategic Insights -

As climate change disrupts agricultural production worldwide, researchers at the University of Illinois Urbana-Champaign have published a groundbreaking study investigating the impact of agricultural shocks on deforestation in Zambia. The study findings suggest that negative agricultural productivity shocks may lead to a negative climate feedback, where farmers engage in emissions-increasing strategies in response to crop failures. This research has significant implications for our understanding of the intricate relationships between climate change, agriculture, and deforestation.

Key Takeaways:

  • The study used the introduction of a crop pest, the fall armyworm, to estimate the effect of a negative agricultural productivity shock on deforestation in Zambia.
  • Researchers found that farmers who were exposed to higher levels of the fall armyworm saw substantial decreases in yield and food security, leading to a doubling of the deforestation rate in Zambia in the 3 years following the outbreak.
  • Increased agricultural land expansion and charcoal production as a coping strategy drove the increase in deforestation, with wealthier areas experiencing lower levels of FAW-induced deforestation.
  • The study highlights the importance of understanding the impact of agricultural shocks on farmer welfare, land use, and deforestation, particularly in sub-Saharan Africa.
  • Negative agricultural productivity shocks may lead to a negative climate feedback, with farmers engaging in emissions-increasing strategies in response to crop failures.
  • The study emphasizes the need for targeted interventions to mitigate the effects of agricultural shocks on deforestation and promote sustainable land-use practices.
  • The research has been peer-reviewed and published in the Proceedings of the National Academy of Sciences.

Statistics:

  • The fall armyworm pest led to a doubling of the deforestation rate in Zambia in the 3 years following the outbreak.
  • Increased agricultural land expansion and charcoal production as a coping strategy drove the increase in deforestation, with charcoal production increasing by 23 percent.
  • Wealthier areas experienced 23% lower FAW-induced deforestation compared with the sample average.
  • The study highlights the significance of understanding the impact of agricultural shocks on deforestation, with potentially severe consequences for climate change mitigation efforts.

Sources:

  • NewsRx. Researchers at University of Illinois Urbana-Champaign Report New Data on Science (When crops fail, forests follow: Agricultural shocks and deforestation in Zambia). Global Warming Focus. October 13, 2025; p 4270.
  • Proceedings of the National Academy of Sciences. When crops fail, forests follow: Agricultural shocks and deforestation in Zambia. 2025;122(40).
  • National Academy of Sciences. 2101 Constitution Ave NW, Washington, DC 20418, USA.
  • Protensia Hadunka, Dept. of Agricultural and Consumer Economics, University of Illinois Urbana-Champaign, Urbana, IL 61801.
  • Pablo J. Ordonez, Gemma Del Rossi, and Kathy Baylis.