Using supply chain data to monitor zero deforestation commitments: an assessment of progress in the Brazilian soy sector
Journal article, 2020

Zero deforestation commitments (ZDCs) are voluntary initiatives where companies or countries pledge to eliminate deforestation from their supply chains. These commitments offer much promise for sustainable commodity production, but are undermined by a lack of transparency about their coverage and impacts. Here, using state-of-the-art supply chain data, we introduce an approach to evaluate the impact of ZDCs, linking traders and international markets to commodity-associated deforestation in the sub-national jurisdictions from which they source. We focus on the Brazilian soy sector, where we find that ZDC coverage is increasing, but under-represents the Cerrado biome where most soy-associated deforestation currently takes place. Though soy-associated deforestation declined in the Amazon after the introduction of the Soy Moratorium, we observe no change in the exposure of companies or countries adopting ZDCs to soy-associated deforestation in the Cerrado. We further assess the formulation and implementation of these ZDCs and identify several systematic weaknesses that must be addressed to increase the likelihood that they achieve meaningful reductions in deforestation in future. As the 2020 deadline for several of these commitments approaches, our approach can provide independent monitoring of progress toward the goal of ending commodity-associated deforestation.

environmental governance

sustainability standards




supply chain


Erasmus K.H.J. Zu Ermgassen

Universite catholique de Louvain

National Fund for Scientific Research

Ben Ayre

Global Canopy Programme

J. Godar

Stockholm Environment Institute

Mairon G. Bastos Lima

Chalmers, Space, Earth and Environment, Physical Resource Theory, Physical Resource Theory 2

Simone Bauch

Global Canopy Programme

R. Garrett

Swiss Federal Institute of Technology in Zürich (ETH)

Jonathan Green

University of York

Michael J. Lathuilli re

Stockholm Environment Institute

Pernilla Löfgren

Stockholm Environment Institute

Christina Macfarquhar

Global Canopy Programme

P. Meyfroidt

National Fund for Scientific Research

Universite catholique de Louvain

C. Suavet

Stockholm Environment Institute

C. West

University of York

T. A. Gardner

Stockholm Environment Institute

Environmental Research Letters

17489318 (ISSN) 17489326 (eISSN)

Vol. 15 3 035003

Subject Categories

Other Mechanical Engineering

Social Sciences Interdisciplinary

Environmental Management



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