Sustainable Energy Economics and Environmental Quality

Sustainable energy economics examines the allocation of resources, investment and policy mechanisms that underpin the transition from fossil-fuel-based systems to low-carbon and renewable energy platforms. Central to this field is the assessment of how market incentives, public and private research and development (R&D) expenditure, and regulatory instruments such as energy taxation and subsidies influence the deployment of clean technologies. Environmental quality metrics – including greenhouse gas emissions, ecological footprint and biocapacity – provide a multidimensional perspective on sustainability by capturing both demand-side pressures and the earth’s capacity to absorb impacts. The interplay between economic growth and environmental preservation has been formalised in frameworks such as the Environmental Kuznets Curve, which hypothesises an inverted-U relationship between per-capita income and pollution levels. More recently, indicators like the load capacity factor have been introduced to integrate supply-side (biocapacity) and demand-side (ecological footprint) considerations into a single index. Global experience demonstrates that investment in energy efficiency and renewables can decouple growth from emissions, provided that macroeconomic policies and technological innovation accelerate deployment at scale. Strategic R&D funding, coupled with carbon pricing or energy taxation, appears more effective at reducing carbon intensity than investments in power storage alone. Moreover, diversifying energy portfolios to include nuclear and renewables has shown promise in improving long-term environmental outcomes, especially when complemented by robust market mechanisms and international cooperation.

Research from Nature Portfolio

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Sustainable Energy Economics and Environmental Quality publication trend

The graph below shows the total number of articles in sustainable energy economics and environmental quality across all publications each year (not limited to Nature Index journals).

Technical terms

Environmental Kuznets Curve (EKC): Hypothesised relationship in which environmental degradation first increases and then decreases with per-capita income.

Load Capacity Factor (LCF): Ratio of a region’s biocapacity to its ecological footprint, indicating the balance between environmental supply and demand.

Ecological Footprint: Aggregate measure of resource consumption and waste assimilation relative to biocapacity.

Renewable Energy Intensity: Proportion of total energy consumption supplied by renewable sources.

Green Technologies: Innovations that reduce environmental impacts, including energy-efficient systems, low-carbon power generation and pollution-control methods.

References

1. Upholding the green agenda of COP27 through publicly funded R&D on energy efficiencies, renewables, nuclear and power storage technologies. Technology in Society (2023).
2. Oil rents and environmental sustainability: Do green technologies and environmental technological innovation matter?. Journal of Open Innovation: Technology, Market, and Complexity (2024).
3. Environmental benefits of nonrenewable energy efficiency and renewable energy intensity in the USA and EU: Examining the role of clean technologies. Sustainable Energy Technologies and Assessments (2023).