Drivers of declining CO2 emissions in 18 developed economies

Le Quéré, Corinne, Korsbakken, Jan Ivar, Wilson, Charlie, Tosun, Jale, Andrew, Robbie, Andres, Robert J., Canadell, Josep G., Jordan, Andrew, Peters, Glen P. and van Vuuren, Detlef P. (2019) Drivers of declining CO2 emissions in 18 developed economies. Nature Climate Change, 9 (3). pp. 213-217. ISSN 1758-678X

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Abstract

Global emissions of carbon dioxide (CO 2 ) from fossil fuels and industry increased by 2.2% per year on average between 2005 and 2015 1 . Global emissions need to peak and decline rapidly to limit climate change to well below 2 °C of warming 2,3 , which is one of the goals of the Paris Agreement 4 . Untangling the reasons underlying recent changes in emissions trajectories is critical to guide efforts to attain those goals. Here we analyse the drivers of decreasing CO 2 emissions in a group of 18 developed economies that have decarbonized over the period 2005–2015. We show that within this group, the displacement of fossil fuels by renewable energy and decreases in energy use explain decreasing CO 2 emissions. However, the decrease in energy use can be explained at least in part by a lower growth in gross domestic product. Correlation analysis suggests that policies on renewable energy are supporting emissions reductions and displacing fossil fuels in these 18 countries, but not elsewhere, and that policies on energy efficiency are supporting lower energy use in these 18 countries, as well as more widely. Overall, the evidence shows that efforts to reduce emissions are underway in many countries, but these efforts need to be maintained and enhanced by more stringent policy actions to support a global peak in emissions followed by global emissions reductions in line with the goals of the Paris Agreement 3 .

Item Type: Article
Uncontrolled Keywords: environmental science (miscellaneous),social sciences (miscellaneous) ,/dk/atira/pure/subjectarea/asjc/2300/2301
Faculty \ School: Faculty of Science > School of Environmental Sciences
Faculty of Science > Tyndall Centre for Climatic Change
Related URLs:
Depositing User: LivePure Connector
Date Deposited: 08 Mar 2019 13:30
Last Modified: 20 Aug 2020 00:32
URI: https://ueaeprints.uea.ac.uk/id/eprint/70189
DOI: 10.1038/s41558-019-0419-7

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