Defining climate change scenario characteristics with a phase space of cumulative primary energy and carbon intensity. Ritchie, J. & Dowlatabadi, H. Environmental Research Letters, 13(2):024012, 2018. ![Defining climate change scenario characteristics with a phase space of cumulative primary energy and carbon intensity [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Climate change modeling relies on projections of future greenhouse gas emissions and other phenomena leading to changes in planetary radiative forcing. Scenarios of socio-technical development consistent with end-of-century forcing levels are commonly produced by integrated assessment models. However, outlooks for forcing from fossil energy combustion can also be presented and defined in terms of two essential components: total energy use this century and the carbon intensity of that energy. This formulation allows a phase space diagram to succinctly describe a broad range of possible outcomes for carbon emissions from the future energy system. In the following paper, we demonstrate this phase space method with the Representative Concentration Pathways (RCPs) as used in the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report (AR5). The resulting RCP phase space is applied to map IPCC Working Group III (WGIII) reference case ‘no policy’ scenarios. Once these scenarios are described as coordinates in the phase space, data mining techniques can readily distill their core features. Accordingly, we conduct a k -means cluster analysis to distinguish the shared outlooks of these scenarios for oil, gas and coal resource use. As a whole, the AR5 database depicts a transition toward re-carbonization, where a world without climate policy inevitably leads to an energy supply with increasing carbon intensity. This orientation runs counter to the experienced ‘dynamics as usual’ of gradual decarbonization, suggesting climate change targets outlined in the Paris Accord are more readily achievable than projected to date.
@article{ritchie_defining_2018,
title = {Defining climate change scenario characteristics with a phase space of cumulative primary energy and carbon intensity},
volume = {13},
issn = {1748-9326},
url = {http://stacks.iop.org/1748-9326/13/i=2/a=024012},
doi = {10.1088/1748-9326/aaa494},
abstract = {Climate change modeling relies on projections of future greenhouse gas emissions and other phenomena leading to changes in planetary radiative forcing. Scenarios of socio-technical development consistent with end-of-century forcing levels are commonly produced by integrated assessment models. However, outlooks for forcing from fossil energy combustion can also be presented and defined in terms of two essential components: total energy use this century and the carbon intensity of that energy. This formulation allows a phase space diagram to succinctly describe a broad range of possible outcomes for carbon emissions from the future energy system. In the following paper, we demonstrate this phase space method with the Representative Concentration Pathways (RCPs) as used in the Intergovernmental Panel on Climate Change (IPCC) Fifth Assessment Report (AR5). The resulting RCP phase space is applied to map IPCC Working Group III (WGIII) reference case ‘no policy’ scenarios. Once these scenarios are described as coordinates in the phase space, data mining techniques can readily distill their core features. Accordingly, we conduct a k -means cluster analysis to distinguish the shared outlooks of these scenarios for oil, gas and coal resource use. As a whole, the AR5 database depicts a transition toward re-carbonization, where a world without climate policy inevitably leads to an energy supply with increasing carbon intensity. This orientation runs counter to the experienced ‘dynamics as usual’ of gradual decarbonization, suggesting climate change targets outlined in the Paris Accord are more readily achievable than projected to date.},
language = {en},
number = {2},
urldate = {2018-02-10},
journal = {Environmental Research Letters},
author = {Ritchie, Justin and Dowlatabadi, Hadi},
year = {2018},
keywords = {collapse, climate, scenarios},
pages = {024012},
file = {Ritchie and Dowlatabadi - 2018 - Defining climate change scenario characteristics w.pdf:C\:\\Users\\rsrs\\Documents\\Zotero Database\\storage\\3RXV69NN\\Ritchie and Dowlatabadi - 2018 - Defining climate change scenario characteristics w.pdf:application/pdf}
}
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