Who’s Responsible for Climate Change? New Evidence Based on Country-Level Estimates of Climate Debt

Benedict Clements, Sanjeev Gupta and Jianhong Liu
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Benedict Clements: Universidad de las Américas en Ecuador
Sanjeev Gupta: Center for Global Development
Jianhong Liu: Center for Global Development

No 242, Policy Papers from Center for Global Development

Abstract: In this paper, we introduce the concept of climate debt and provide country-level estimates through 2035 under a business-as-usual scenario. These estimates can help inform the debate on climate change by providing a clear view of which countries have (until the present) contributed the most to climate change, as well as the likely path for climate debt by country over the next 15 years. We then discuss the implications for carbon emissions if the G-20 countries and EU were to adopt either of the two policy options proposed in recent months: the first by President Biden for the US and the other by the EU for its member countries. The implications for fiscal policy are that beyond the need to keep public debt at sustainable levels, countries will also need to allocate funds for expected increases in pension and health spending associated with aging populations. As a result, there may be little room for new expenditures (such as green infrastructure or subsidies for clean energy) to reduce the growth of climate debt. Countries could turn to the revenue side, in particular greater taxation of energy with carbon taxes. This would have the advantage of reducing emissions while also helping countries to fund spending on green infrastructure.

Pages: 26 pages
Date: 2021-11-22
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Persistent link: https://EconPapers.repec.org/RePEc:cgd:ppaper:242

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