As nations worldwide confront the urgent challenge of climate change, China's "Dual Carbon" goals prioritize significant decarbonization across all economic sectors. While industrial and energy sectors often receive primary attention, the agricultural sector, particularly livestock farming, represents a substantial source of potent greenhouse gases like methane (CH₄) and nitrous oxide (N₂O). Local governments in China have implemented stringent environmental regulations, such as "Livestock-Free Zones," to curb agricultural pollution. However, the overall effectiveness of these spatially targeted policies, especially regarding their potential to displace environmental burdens, remains a subject of considerable debate.
A recent study investigated the impacts of the "Livestock-Free Zone" policy in Guangdong Province, China's largest provincial economy. Researchers utilized county-level panel data from 2014 to 2023, employing a sophisticated combination of spatial Durbin models, continuous difference-in-differences models, and network analysis. This approach allowed for a precise quantification of the policy's local effects and any subsequent spatial spillover, addressing gaps in understanding policy-induced pollution transfers within land-intensive agricultural sectors and at subnational scales.
Local Success, Regional Burden: The Carbon Leakage Paradox
The analysis revealed a striking paradox: while the "Livestock-Free Zone" policy successfully reduced local carbon emissions in regulated areas, this achievement was overshadowed by a significantly larger "policy leakage" effect. The study found that for every unit of carbon reduced locally, approximately 3.14 units of carbon emissions were displaced to neighboring regions. This spatial transfer indicates that the environmental burden was not eliminated but rather shifted, potentially undermining overall regional mitigation efforts and confirming the Pollution Haven Hypothesis within the agricultural sector at a subnational scale.
Further investigation into the emission transfer patterns demonstrated a clear hierarchical structure. Core cities within the highly developed Pearl River Delta region, with their stringent environmental regulations, emerged as primary sources of emission spillovers. Less developed northern and western Guangdong regions became major absorption zones. While western Guangdong, with its established large-scale farming, maintained high total emissions yet low carbon-emission intensity , northern Guangdong faced an "efficiency dilemma." This region absorbed production capacity without sufficient technological upgrades, leading to amplified environmental risks and a development trap where capacity absorption resulted in deteriorating low-carbon efficiency.
Beyond Borders: Advocating for Coordinated Governance
The findings underscore the limitations of fragmented environmental policies that do not account for broader spatial scales and feedback mechanisms. Such localized regulations, when lacking regional coordination, disproportionately shift costs to peripheral regions with weaker environmental governance and technological foundations. The study advocates for a policy shift from a simple "spatial squeeze" approach to a regionally coordinated development strategy centered on "efficiency improvement." This requires establishing top-level coordination mechanisms, implementing measures like ecological compensation, encouraging joint technology investment, and developing shared industrial parks to guide synchronized capital and advanced technology flows into spillover regions.
The research provides critical micro-level evidence for policymakers to refine environmental governance. Despite its robust findings, the study acknowledges limitations, including potential measurement error in policy intensity derived from image recognition, the use of IPCC Tier 1 emission factors that might not capture specific technological upgrades, and the representation of statistical correlations rather than direct physical livestock flows in the spatial network. Future research could track individual farm migration decisions and assess the co-transfer effects of multiple pollutants for more comprehensive regional sustainability pathways.
Suggested author quote for approval:
"Our findings demonstrate that fragmented local environmental regulations, while achieving immediate local benefits, can inadvertently create a 'carbon leakage' effect that moves the problem rather than solving it," states Xunan Yang , a corresponding author on the study. "To genuinely advance sustainable development, future environmental policies must embrace a regional, coordinated approach that pairs industrial relocation with synchronized technological transfers, transforming environmental challenges into opportunities for green upgrading across all regions."
Corresponding Author: Xunan Yang
Original Source: https://doi.org/10.1007/s44246-026-00283-3
Contributions: All authors contributed to the study conception and design. Conceptualization, funding acquisition, and project administration were led by Xunan Yang. Methodology design, investigation, and visualization were conducted by Zhiyi Ye and Xunan Yang. Data curation and formal analysis were performed by Zhiyi Ye, Xunan Yang, Yadong Cao, and Qihua Liang. The first draft of the manuscript was written by Zhiyi Ye and Xunan Yang. Xunan Yang, Ai-Jun Ma, and Meiying Xu critically reviewed and edited the manuscript. All authors read and approved the final manuscript.
Carbon Research
Experimental study
Not applicable
Spatial transfer and policy leakage of livestock carbon emissions driven by local livestock-free zone policies
22-Jul-2026
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.