# GMO approvals under pressure: How climate shocks shape policy across nations

**Authors:** Xiangwen Kong

PMC · DOI: 10.1371/journal.pone.0332298 · PLOS One · 2025-10-22

## TL;DR

This paper examines how climate shocks affect GMO approval policies, finding that countries with low GMO production capacity tend to delay approvals after such events.

## Contribution

The study introduces a theoretical model linking climate shocks to GMO regulatory inertia, validated through empirical analysis.

## Key findings

- Climate shocks delay GMO approvals in countries with low GMO development capacity.
- The cumulative effects of climate shocks on approval activity were estimated using a local projection method.
- Results suggest climate change may intensify global policy divides on GMOs.

## Abstract

While GMO cultivation is often viewed as a strategy to buffer agriculture against climate change, its regulation remains controversial across countries. This study explores how climate shocks influence global patterns of genetically modified organism (GMO) approval. We develop a theoretical model and predict that climate shocks reduce the likelihood of GMO approvals in countries lacking a comparative advantage in GMO production. To test this, a local projection method is used to estimate the cumulative effects of climate shocks on approval activity. The results show that climate shocks tend to delay approvals, especially in countries with low GMO development capacity. These findings suggest that climate change may amplify regulatory inertia and intensify global policy divides on GMOs, raising concerns about the adaptability of global food systems under increasing environmental stress.

## Full-text entities

- **Diseases:** Drought (MESH:C536747), shock (MESH:D012769), food insecurity (MESH:D005517)
- **Chemicals:** ice (MESH:D007053)
- **Species:** Homo sapiens (human, species) [taxon 9606], Glycine max (soybean, species) [taxon 3847]

## Full text

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## Figures

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## References

38 references — full list in the complete paper: https://tomesphere.com/paper/PMC12543154/full.md

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Source: https://tomesphere.com/paper/PMC12543154