Economists and Environmental Scientists Diverge on Pressing Environmental Issues and Solutions
A recent global study indicates that economists and environmental scientists hold distinct perceptions regarding the most pressing environmental issues and, consequently, favor different approaches to mitigation. The research surveyed over 2,300 academics, revealing disparities in the breadth of environmental problems recognized by each discipline and their preferences for solutions ranging from technological advancements to systemic economic changes.
Study Methodology
The study involved a global survey of 2,365 researchers who publish in leading economics and environmental science journals. Participants were asked to list up to nine environmental issues they considered most relevant today. Additionally, researchers rated the potential of seven different approaches for mitigating environmental challenges.
Perceptions of Environmental Issues
The survey identified distinct perceptions of environmental issues between the two fields.
- Climate Change: This was the most frequently mentioned issue, cited by approximately 70% of all respondents.
- Biosphere Integrity: Loss of nature, or biosphere integrity, was the second most common, mentioned by 51% of participants.
- Less Recognized Issues: Several other environmental pressures were mentioned less frequently:
- Novel entities (e.g., synthetic chemicals, plastics): approximately 43%
- Biogeochemical flows (e.g., fertilizer): approximately 9%
- Ocean acidification: approximately 8%
Environmental researchers consistently listed a broader range of issue categories compared to economists.
While both groups equally mentioned climate change and related issues such as greenhouse gas emissions or air pollution, differences emerged for issues less directly tied to carbon, including biodiversity loss, land system change, novel entities, and broader pollution. This divergence is suggested to stem from distinct disciplinary training, with economists often focusing on market mechanisms and policies related to carbon emissions.
Preferences for Solutions
The study also assessed researchers' opinions on the potential of various approaches for mitigating environmental issues.
- Overall Ratings: Technological advances received the highest potential rating among the seven approaches, while non-violent civil disobedience was rated lowest. All approaches were rated with at least moderate potential.
- Economists' Preferences: Economists rated market-based solutions and technological advances higher than environmental researchers did.
- Environmental Scientists' Preferences: Environmental researchers, conversely, rated degrowth of the global economy and non-violent civil disobedience higher than economists.
A pattern emerged indicating that researchers who recognized a broader spectrum of environmental issues also perceived higher potential in more systemic approaches, such as environmental regulation, degrowth, and non-violent civil disobedience. Conversely, this broader understanding of issues correlated with lower perceived potential for technological advances.
Implications for Environmental Debates
The findings suggest that the differing "problem maps" held by influential expert groups like economists and environmental scientists contribute to their recommendation of different solutions and can lead to stalemates in environmental debates. When climate change is viewed as the primary issue, solutions often concentrate on cleaner technology and market incentives. However, a broader recognition of issues such as biodiversity loss, chemical pollution, and land system change tends to shift the perspective towards systemic changes in economic production, consumption, and organization.
Related research on "green growth" further indicates that many researchers, particularly environmental scientists, express skepticism that societies can achieve economic growth while rapidly reducing environmental harm. Economists generally reported higher optimism regarding this possibility, which was linked to their confidence in technology and markets. The study suggests that a more unified understanding of the multifaceted environmental crisis, extending beyond carbon alone, could foster more productive research and broader consideration of potential solutions.