Abstract
AbstractCarbon dioxide removal (CDR) technologies and international emissions trading are both widely represented in climate change mitigation scenarios, but the interplay among them has not been closely examined. By systematically varying key policy and technology assumptions in a global energy-economic model, we find that CDR and international emissions trading are mutually reinforcing in deep decarbonization scenarios. This occurs because CDR potential is not evenly distributed geographically, allowing trade to unlock this potential, and because trading in a net-zero emissions world requires negative emissions, allowing CDR to enable trade. Since carbon prices change in the opposite direction as the quantity of permits traded and CDR deployed, we find that the total amount spent on emissions trading and the revenue received by CDR producers do not vary strongly with constraints on emissions trading or CDR. However, spending is more efficient and GDP is higher when both CDR and trading are available.
Funder
ExxonMobil Technology and Engineering Company
Publisher
Springer Science and Business Media LLC
Reference66 articles.
1. IPCC [Intergovernmental Panel on Climate Change]. Climate change 2022: mitigation of climate change. contribution of working group III to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change [Shukla, P. R. et al., (eds.)]. Cambridge University Press, Cambridge, UK and New York, NY, USA. https://doi.org/10.1017/9781009157926 (2022).
2. Rogelj, J. et al. Mitigation pathways compatible with 1.5 °C in the context of sustainable development. In: Global Warming of 1.5 °C. An IPCC Special Report on the impacts of global warming of 1.5 °C above pre-industrial levels and related global greenhouse gas emission pathways, in the context of strengthening the global response to the threat of climate change, sustainable development, and efforts to eradicate poverty [Masson-Delmotte, V. et al.] (2018).
3. UN [United Nations]. The Paris Agreement. (2015).
4. Chiquier, S., Patrizio, P., Bui, M., Sunny, N. & Mac Dowell, N. A comparative analysis of the efficiency, timing, and permanence of CO2 removal pathways. Energy Environ. Sci. 15, 4389–4403 (2022).
5. Mac Dowell, N., Reiner, D. M. & Haszeldine, R. S. Comparing approaches for carbon dioxide removal. Joule 6, 2233–2239 (2022).