Economic impacts of alternative greenhouse gas emission metrics: a model-based assessment

Strefler, Jessica; Luderer, Gunnar; Aboumahboub, Tino; Kriegler, Elmar

doi:10.1007/s10584-014-1188-y

Cited by 28 publications

(21 citation statements)

References 32 publications

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“…Temperatures could potentially overshoot unacceptably high before a target year or change too rapidly (Ekholm et al 2013). By comparing several metrics, used to reach the same two degree climate target, Strefler et al (2014) found very small differences in maximum transient temperatures (<= 0.05°C), with the slightly lower temperatures generally corresponding with slightly higher policy costs.…”

Section: Effects On Policy Costs and Strategiesmentioning

confidence: 95%

“…In most studies the cost differences as a result of the choice of different metrics are found to be relatively small, when considering the same prescribed climate target (Ekholm et al 2013;Reisinger et al 2013;Strefler et al 2014;van den Berg et al 2015). However, if relatively long time horizons are assumed, such as with the 500 year GWP or the 100 year GTP, policy costs are likely to increase considerably (in the order of 5 % to 20 %) (Ekholm et al 2013;Reisinger et al 2013;van den Berg et al 2015).…”

Section: Effects On Policy Costs and Strategiesmentioning

confidence: 99%

“…The reason is that with long timescales, methane reduction becomes unattractive because of a low metric value, and other gases have to be abated more at a higher cost. The use of time-dependent, GTP(t) metric, leads to different results: while some studies have reported a cost reduction (Johansson et al 2006;Reisinger et al 2013), others have reported equal costs (Strefler et al 2014) or even higher costs (van den Berg et al 2015). This study aims to understand the underlying reasons for this diversity in cost estimates resulting from GTP (t) and to conclude the ongoing debate about this topic.…”

Section: Effects On Policy Costs and Strategiesmentioning

confidence: 99%

“…Although global differences in policy costs can be small, the choice of a metric has large implications for the timing and amount of methane emissions (Reisinger et al 2013;Smith et al 2013;Strefler et al 2014;van den Berg et al 2015;van Vuuren et al 2006a). Next to emission reduction profiles, another strategic consideration for the choice of a metric is the induced temperature profile.…”

Section: Effects On Policy Costs and Strategiesmentioning

confidence: 99%

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How climate metrics affect global mitigation strategies and costs: a multi-model study

et al. 2016

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In climate policy, substitutions metrics are used to determine exchange ratios for different greenhouse gases as part of a multi-gas strategy. The suitability of the metric depends on the policy goals and considerations regarding its practical use. Here, we present a multimodel comparison study to look at the impact of different metrics on the mitigation strategies and global climate policy costs. The study looks into different Global Warming Potentials (GWP) and the Global Temperature change Potential (GTP). The study shows that for all the models, varying between GWPs -from different IPCC reports, with different integration periods: 20 or 100 years -has a relatively small influence on policy costs (< 2.2 % spread across scenarios with a 2.8 W/m 2 target) and climate outcomes. Metrics with a constant low substitution value for methane (effectively reducing its abatement), in contrast, lead to highercost mitigation pathways (with an average cost increase of 32.8 % in a 2.8 W/m 2 scenario). If implemented efficiently, a time-varying GTP leads to a limited cost reduction compared to GWP. However, under imperfect foresight in combination with inertia of CH 4 abatement options, or if implemented sub-optimally, time-varying GTP can result in higher costs than a 100-year GWP. At the same time, given a long-term radiative forcing target, a time-varying GTP results in slightly higher maximum global temperature change rates.

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Section: Effects On Policy Costs and Strategiesmentioning

confidence: 95%

Section: Effects On Policy Costs and Strategiesmentioning

confidence: 99%

Section: Effects On Policy Costs and Strategiesmentioning

confidence: 99%

Section: Effects On Policy Costs and Strategiesmentioning

confidence: 99%

See 2 more Smart Citations

How climate metrics affect global mitigation strategies and costs: a multi-model study

et al. 2016

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“…The strength of the effect depends on the endogenous gas price. The greenhouse gas emissions representation in the REMIND model has been fully reported in the peer-reviewed literature 89 .…”

Section: Letter Researchmentioning

confidence: 99%