Differences in carbon emissions reduction between countries pursuing renewable electricity versus nuclear power

By Benjamin Sovacool, P. Schmid, Andrew Stirling, Goetz Walter, G. Mackerron. Nature Energy, 2020

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Two of the most widely emphasized contenders for carbon emissions reduction in the electricity sector are nuclear power and renewable energy. While scenarios regularly question the potential impacts of adoption of various technology mixes in the future, it is less clear which technology has been associated with greater historical emission reductions. Here, we use multiple regression analyses on global datasets of national carbon emissions and renewable and nuclear electricity production across 123 countries over 25 years to examine systematically patterns in how countries variously using nuclear power and renewables contrastingly show higher or lower carbon emissions. We find that larger-scale national nuclear attachments do not tend to associate with significantly lower carbon emissions while renewables do. We also find a negative association between the scales of national nuclear and renewables attachments. This suggests nuclear and renewables attachments tend to crowd each other out. Nuclear and renewable energy are considered two of the most important technologies towards decarbonization though it is not clear how their adoption relates to national emission reductions. Sovacool et al. look at data from 123 countries to examine emission reductions associated with nuclear- or renewable energy-focused strategies.

Subfields: Economics and Econometrics, Pollution, Sociology and Political Science

View Paper: https://www.semanticscholar.org/paper/7f1b12f8bae9537d56c34d805cfeebcd1c171b7c

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