From the World2 and World3 models to contemporary Integrated Assessment Models (IAMs) that model carbon neutral emission pathways, global computer models have served as virtual laboratories for addressing economic, environmental and technological concerns together. Representing technological change has been a controversial element of global modelling efforts because, to a great extent, it sets the parameters on conceivable futures. To retrace this history, this article analyses four moments when modellers debated technological change: the controversy spurred by The Limits to Growth in the 1970s; subsequent global future studies during that decade; the IIASA Energy in a Finite World study in the 1980s; and the shift to endogenous technological change in IAMs in the 2000s. It shows that the notion of technological change as a predictable parameter affecting the future of society was not a given. Technological change progressively became a parameter in models as more elaborate methodologies were developed to simulate it. When modellers began to focus on climate action in the 1990s and 2000s, their interest in the relationship between technological change and social change dwindled. The increasing skill with which modellers formally represented technological dynamics was commensurate to the decline of heated discussions over how conflicting worldviews shaped simulations.
International audience ; This paper analyzes the challenges related to the assessment of co-benefits of climate policies underpinned by the implementation of multi-objective policies which seek synergies between climate policies and other development objectives (poverty alleviation, employment, health etc.). The analysis highlights the increasing interest in co-benefits in the latest 5th IPCC report, in particular by integrated models. Nevertheless, the quantified evaluation of co-benefits is still confronted to several methodological limitations which reduce the scope of co-benefits, particularly at the global level. In a growing context of climate-development approaches in climate negotiations, this article insists on the need to also assess cobenefits of other policies which induce a significant part of GHG emissions. Considering climate policies focused only on Greehouse Gases emissions reduction limits the range of policy instruments to carbon taxation, tradable carbon emissions permits or dedicated mitigation and adaptation funds. This also hinders the integration of climate objectives in non-climate policies. Analyzing impacts of developmentpolicies on Green Gases emissions in the form of co-benefits requires to broaden the range of policy instruments and to take into account other drivers of emissions such as land dynamics. Including these mechanisms in integrated models therefore represents new scientific frontiers for integrated models in the coming years. ; Cet article 1 examine les enjeux sous-jacents à l'évaluation des cobénéfices des politiques climatiques dans le cadre de la mise en oeuvre de politiques multi-objectifs, au sein lesquelles des synergies sont recherchées entre la lutte contre le changement climatique et des objectifs de développement (emploi, santé, sortie de la pauvreté, etc.). L'analyse du cinquième rapport du groupe III du GIEC montre en effet un intérêt grandissant dans la littérature pour les évaluations quantifiées des cobénéfices, en particulier à l'aide de modèles numériques ...
International audience ; This paper analyzes the challenges related to the assessment of co-benefits of climate policies underpinned by the implementation of multi-objective policies which seek synergies between climate policies and other development objectives (poverty alleviation, employment, health etc.). The analysis highlights the increasing interest in co-benefits in the latest 5th IPCC report, in particular by integrated models. Nevertheless, the quantified evaluation of co-benefits is still confronted to several methodological limitations which reduce the scope of co-benefits, particularly at the global level. In a growing context of climate-development approaches in climate negotiations, this article insists on the need to also assess cobenefits of other policies which induce a significant part of GHG emissions. Considering climate policies focused only on Greehouse Gases emissions reduction limits the range of policy instruments to carbon taxation, tradable carbon emissions permits or dedicated mitigation and adaptation funds. This also hinders the integration of climate objectives in non-climate policies. Analyzing impacts of developmentpolicies on Green Gases emissions in the form of co-benefits requires to broaden the range of policy instruments and to take into account other drivers of emissions such as land dynamics. Including these mechanisms in integrated models therefore represents new scientific frontiers for integrated models in the coming years. ; Cet article 1 examine les enjeux sous-jacents à l'évaluation des cobénéfices des politiques climatiques dans le cadre de la mise en oeuvre de politiques multi-objectifs, au sein lesquelles des synergies sont recherchées entre la lutte contre le changement climatique et des objectifs de développement (emploi, santé, sortie de la pauvreté, etc.). L'analyse du cinquième rapport du groupe III du GIEC montre en effet un intérêt grandissant dans la littérature pour les évaluations quantifiées des cobénéfices, en particulier à l'aide de modèles numériques intégrés. Néanmoins, l'évaluation quantifiée à une échelle globale des cobénéfices est confrontée à des difficultés d'ordre méthodologique qui expliquent l'écart entre les pratiques des modélisateurs et la vision théorique des économistes qui repose sur l'analyse coûts-bénéfices. L'article revient enfin sur la nécessité d'élargir le champ d'investigation de l'évaluation des cobénéfices aux politiques non climatiques qui déterminent une part importante des émissions de GES, et constituent un des enjeux majeurs des approches intégrées climat-développement qui montent en puissance dans les négociations climat en cours. Abstract – Co-benefits of climate policies: a potential keystone of climate negotiations? This paper analyzes the challenges related to the assessment of co-benefits of climate policies underpinned by the implementation of multi-objective policies which seek synergies between climate policies and other development objectives (poverty alleviation, employment, health etc.). The analysis highlights the increasing interest in co-benefits in the latest 5th IPCC report, in particular by integrated models. Nevertheless, the quantified evaluation of co-benefits is still confronted to several methodological limitations which reduce the scope of co-benefits, particularly at the global level. In a growing context of climate-development approaches in climate negotiations, this article insists on the need to also assess co-benefits of other policies which induce a significant part of GHG emissions. Considering climate policies focused only on Greehouse Gases emissions reduction limits the range of policy instruments to carbon taxation, tradable carbon emissions permits or dedicated mitigation and adaptation funds. This also hinders the integration of climate objectives in non-climate policies. Analyzing impacts of development policies on Green Gases emissions in the form of co-benefits requires to broaden the range of policy instruments and to take into account other drivers of emissions such as land dynamics. Including these mechanisms in integrated models therefore represents new scientific frontiers for integrated models in the coming years.
International audience ; This paper analyzes the challenges related to the assessment of co-benefits of climate policies underpinned by the implementation of multi-objective policies which seek synergies between climate policies and other development objectives (poverty alleviation, employment, health etc.). The analysis highlights the increasing interest in co-benefits in the latest 5th IPCC report, in particular by integrated models. Nevertheless, the quantified evaluation of co-benefits is still confronted to several methodological limitations which reduce the scope of co-benefits, particularly at the global level. In a growing context of climate-development approaches in climate negotiations, this article insists on the need to also assess cobenefits of other policies which induce a significant part of GHG emissions. Considering climate policies focused only on Greehouse Gases emissions reduction limits the range of policy instruments to carbon taxation, tradable carbon emissions permits or dedicated mitigation and adaptation funds. This also hinders the integration of climate objectives in non-climate policies. Analyzing impacts of developmentpolicies on Green Gases emissions in the form of co-benefits requires to broaden the range of policy instruments and to take into account other drivers of emissions such as land dynamics. Including these mechanisms in integrated models therefore represents new scientific frontiers for integrated models in the coming years. ; Cet article 1 examine les enjeux sous-jacents à l'évaluation des cobénéfices des politiques climatiques dans le cadre de la mise en oeuvre de politiques multi-objectifs, au sein lesquelles des synergies sont recherchées entre la lutte contre le changement climatique et des objectifs de développement (emploi, santé, sortie de la pauvreté, etc.). L'analyse du cinquième rapport du groupe III du GIEC montre en effet un intérêt grandissant dans la littérature pour les évaluations quantifiées des cobénéfices, en particulier à l'aide de modèles numériques intégrés. Néanmoins, l'évaluation quantifiée à une échelle globale des cobénéfices est confrontée à des difficultés d'ordre méthodologique qui expliquent l'écart entre les pratiques des modélisateurs et la vision théorique des économistes qui repose sur l'analyse coûts-bénéfices. L'article revient enfin sur la nécessité d'élargir le champ d'investigation de l'évaluation des cobénéfices aux politiques non climatiques qui déterminent une part importante des émissions de GES, et constituent un des enjeux majeurs des approches intégrées climat-développement qui montent en puissance dans les négociations climat en cours. Abstract – Co-benefits of climate policies: a potential keystone of climate negotiations? This paper analyzes the challenges related to the assessment of co-benefits of climate policies underpinned by the implementation of multi-objective policies which seek synergies between climate policies and other development objectives (poverty alleviation, employment, health etc.). The analysis highlights the increasing interest in co-benefits in the latest 5th IPCC report, in particular by integrated models. Nevertheless, the quantified evaluation of co-benefits is still confronted to several methodological limitations which reduce the scope of co-benefits, particularly at the global level. In a growing context of climate-development approaches in climate negotiations, this article insists on the need to also assess co-benefits of other policies which induce a significant part of GHG emissions. Considering climate policies focused only on Greehouse Gases emissions reduction limits the range of policy instruments to carbon taxation, tradable carbon emissions permits or dedicated mitigation and adaptation funds. This also hinders the integration of climate objectives in non-climate policies. Analyzing impacts of development policies on Green Gases emissions in the form of co-benefits requires to broaden the range of policy instruments and to take into account other drivers of emissions such as land dynamics. Including these mechanisms in integrated models therefore represents new scientific frontiers for integrated models in the coming years.
International audience ; This paper analyzes the challenges related to the assessment of co-benefits of climate policies underpinned by the implementation of multi-objective policies which seek synergies between climate policies and other development objectives (poverty alleviation, employment, health etc.). The analysis highlights the increasing interest in co-benefits in the latest 5th IPCC report, in particular by integrated models. Nevertheless, the quantified evaluation of co-benefits is still confronted to several methodological limitations which reduce the scope of co-benefits, particularly at the global level. In a growing context of climate-development approaches in climate negotiations, this article insists on the need to also assess cobenefits of other policies which induce a significant part of GHG emissions. Considering climate policies focused only on Greehouse Gases emissions reduction limits the range of policy instruments to carbon taxation, tradable carbon emissions permits or dedicated mitigation and adaptation funds. This also hinders the integration of climate objectives in non-climate policies. Analyzing impacts of developmentpolicies on Green Gases emissions in the form of co-benefits requires to broaden the range of policy instruments and to take into account other drivers of emissions such as land dynamics. Including these mechanisms in integrated models therefore represents new scientific frontiers for integrated models in the coming years. ; Cet article 1 examine les enjeux sous-jacents à l'évaluation des cobénéfices des politiques climatiques dans le cadre de la mise en oeuvre de politiques multi-objectifs, au sein lesquelles des synergies sont recherchées entre la lutte contre le changement climatique et des objectifs de développement (emploi, santé, sortie de la pauvreté, etc.). L'analyse du cinquième rapport du groupe III du GIEC montre en effet un intérêt grandissant dans la littérature pour les évaluations quantifiées des cobénéfices, en particulier à l'aide de modèles numériques intégrés. Néanmoins, l'évaluation quantifiée à une échelle globale des cobénéfices est confrontée à des difficultés d'ordre méthodologique qui expliquent l'écart entre les pratiques des modélisateurs et la vision théorique des économistes qui repose sur l'analyse coûts-bénéfices. L'article revient enfin sur la nécessité d'élargir le champ d'investigation de l'évaluation des cobénéfices aux politiques non climatiques qui déterminent une part importante des émissions de GES, et constituent un des enjeux majeurs des approches intégrées climat-développement qui montent en puissance dans les négociations climat en cours. Abstract – Co-benefits of climate policies: a potential keystone of climate negotiations? This paper analyzes the challenges related to the assessment of co-benefits of climate policies underpinned by the implementation of multi-objective policies which seek synergies between climate policies and other development objectives (poverty alleviation, employment, health etc.). The analysis highlights the increasing interest in co-benefits in the latest 5th IPCC report, in particular by integrated models. Nevertheless, the quantified evaluation of co-benefits is still confronted to several methodological limitations which reduce the scope of co-benefits, particularly at the global level. In a growing context of climate-development approaches in climate negotiations, this article insists on the need to also assess co-benefits of other policies which induce a significant part of GHG emissions. Considering climate policies focused only on Greehouse Gases emissions reduction limits the range of policy instruments to carbon taxation, tradable carbon emissions permits or dedicated mitigation and adaptation funds. This also hinders the integration of climate objectives in non-climate policies. Analyzing impacts of development policies on Green Gases emissions in the form of co-benefits requires to broaden the range of policy instruments and to take into account other drivers of emissions such as land dynamics. Including these mechanisms in integrated models therefore represents new scientific frontiers for integrated models in the coming years.
International audience ; This paper analyzes the challenges related to the assessment of co-benefits of climate policies underpinned by the implementation of multi-objective policies which seek synergies between climate policies and other development objectives (poverty alleviation, employment, health etc.). The analysis highlights the increasing interest in co-benefits in the latest 5th IPCC report, in particular by integrated models. Nevertheless, the quantified evaluation of co-benefits is still confronted to several methodological limitations which reduce the scope of co-benefits, particularly at the global level. In a growing context of climate-development approaches in climate negotiations, this article insists on the need to also assess cobenefits of other policies which induce a significant part of GHG emissions. Considering climate policies focused only on Greehouse Gases emissions reduction limits the range of policy instruments to carbon taxation, tradable carbon emissions permits or dedicated mitigation and adaptation funds. This also hinders the integration of climate objectives in non-climate policies. Analyzing impacts of developmentpolicies on Green Gases emissions in the form of co-benefits requires to broaden the range of policy instruments and to take into account other drivers of emissions such as land dynamics. Including these mechanisms in integrated models therefore represents new scientific frontiers for integrated models in the coming years. ; Cet article 1 examine les enjeux sous-jacents à l'évaluation des cobénéfices des politiques climatiques dans le cadre de la mise en oeuvre de politiques multi-objectifs, au sein lesquelles des synergies sont recherchées entre la lutte contre le changement climatique et des objectifs de développement (emploi, santé, sortie de la pauvreté, etc.). L'analyse du cinquième rapport du groupe III du GIEC montre en effet un intérêt grandissant dans la littérature pour les évaluations quantifiées des cobénéfices, en particulier à l'aide de modèles numériques intégrés. Néanmoins, l'évaluation quantifiée à une échelle globale des cobénéfices est confrontée à des difficultés d'ordre méthodologique qui expliquent l'écart entre les pratiques des modélisateurs et la vision théorique des économistes qui repose sur l'analyse coûts-bénéfices. L'article revient enfin sur la nécessité d'élargir le champ d'investigation de l'évaluation des cobénéfices aux politiques non climatiques qui déterminent une part importante des émissions de GES, et constituent un des enjeux majeurs des approches intégrées climat-développement qui montent en puissance dans les négociations climat en cours. Abstract – Co-benefits of climate policies: a potential keystone of climate negotiations? This paper analyzes the challenges related to the assessment of co-benefits of climate policies underpinned by the implementation of multi-objective policies which seek synergies between climate policies and other development objectives (poverty alleviation, employment, health etc.). The analysis highlights the increasing interest in co-benefits in the latest 5th IPCC report, in particular by integrated models. Nevertheless, the quantified evaluation of co-benefits is still confronted to several methodological limitations which reduce the scope of co-benefits, particularly at the global level. In a growing context of climate-development approaches in climate negotiations, this article insists on the need to also assess co-benefits of other policies which induce a significant part of GHG emissions. Considering climate policies focused only on Greehouse Gases emissions reduction limits the range of policy instruments to carbon taxation, tradable carbon emissions permits or dedicated mitigation and adaptation funds. This also hinders the integration of climate objectives in non-climate policies. Analyzing impacts of development policies on Green Gases emissions in the form of co-benefits requires to broaden the range of policy instruments and to take into account other drivers of emissions such as land dynamics. Including these mechanisms in integrated models therefore represents new scientific frontiers for integrated models in the coming years.
In this article, we analyze the socioeconomic effects of energy sustainability challenges raised by oil depletion and climate change at the European and global levels. We assess macroeconomic impacts at different period markers from 2010 to 2100 and under different visions of the future of globalization. Fragmented capital markets affect the pace and direction of change and induce additional economic losses in the long term. Regionalized good markets have a positive effect in the long term because less intense international trade moderates the effects of fossil fuel constraints. A sustainable energy future will require implementing policies and measures that are able to (a) provide correct incentives for long-term investments by resorting to other signals than current market prices, (b) incorporate sectoral measures that act complementarily to pricing scheme measures for sectors confronted with biased agents' behaviors or strong inertias, and (c) foster globalization patterns that are consistent with energy sustainability objectives. The challenge consists in articulating the objectives and the instruments of these different policy and measures triggering the transition toward a sustainable future.
Integrated Assessment Models (IAMs) have gained a prominent role in the climate science-policy interface. The article reconstructs the evolution of IAMs and their changing role in this interface, investigating how and why IAMs have become so prominent. Based on literature analysis, quantitative document analysis and semi-structured interviews, we describe the historic evolution of the interactions between IAMs and policy-making between 1970 and 2015. We identify five historic phases in which IAMs played distinct mediating roles between science and policy, succeeding to adjust their scenario efforts to the continuously changing demands for knowledge from the policy community. In explaining the prominent role of IAMs, we differentiate between background conditions (material and sociological) and more contextual factors, most notably the flexible, hybrid and broad nature of IAMs as well as the pro-active character of the IAM community to enhance their policy relevance. We draw on the notion of institutional work to explain this success. In light of the urgency of responding to the climate crisis, we suggest that the IAM community may expand their scope of anticipated futures and consider engaging a wider range of publics and societal stakeholders beyond the science-policy interface.
Sustainable and inclusive decarbonisation of European cities is a pre-requisite for achieving carbon neutrality at the EU level. As melting pots and demand hubs, cities are responsible for a majority of greenhouse gas emissions. For a transition towards zero-carbon cities, in the EU as elsewhere, a holistic approach and extensive collaboration is needed that can move city action beyond simply increasing the number of localized low-carbon solutions. This DEEDS Policy Brief outlines key features of EU research and innovation needs and proposes policy measures to promote zero-carbon European cities. ; This Polciy Brief is published as part of the deliverables within the Horizon 2020 DEEDs (Dialogue on European Decarbonisation Pathways) project (GA No. 776646) ; Horizon2020 project DEEDS (Dialogue on European Decarbonisation Pathways) GA No. 776646
