TY - RPRT A1 - Schlacke, Sabine A1 - Knodt, Michèle A1 - Flachsland, Christian A1 - Müller, Thorsten A1 - Findeisen, Francesco A1 - Kemmerzell, Jörg A1 - Maruschke, Jana A1 - Plate, Christoph A1 - Sulerz, Julia A1 - Thierjung, Eva-Maria T1 - Die Handlungsfähigkeit des deutschen Staates in der Klima- und Energiepolitik Y1 - 2025 U6 - https://doi.org/10.48485/pik.2025.014 PB - Kopernikus-Projekt Ariadne CY - Potsdam ER - TY - RPRT A1 - Flachsland, Christian A1 - Edenhofer, Jacob A1 - Zwar, Claudia T1 - Eine vertane Chance, aber keine Katastrophe: Die Novelle des Bundes-Klimaschutzgesetzes T2 - Verfassungsblog Y1 - 2024 U6 - https://doi.org/10.59704/2c0758cc33ed9dc3 N1 - This publication is also available in English: Flachsland, C., Edenhofer, J., & Zwar, C. (2024). Not a Disaster, but a Missed Opportunity: The Amendment to the Federal Climate Protection Act. Verfassungsblog. https://verfassungsblog.de/german-federal-climate-protection-act/ IS - 2024/05/06 ER - TY - JOUR A1 - Callaghan, Max A1 - Banisch, Lucy A1 - Doebbeling-Hildebrandt, Niklas A1 - Edmondson, Duncan A1 - Flachsland, Christian A1 - Lamb, William F. A1 - Levi, Sebastian A1 - Müller-Hansen, Finn A1 - Posada, Eduardo A1 - Vasudevan, Shraddha A1 - Minx, Jan C. T1 - Machine learning map of climate policy literature reveals disparities between scientific attention, policy density, and emissions JF - npj Climate Action N2 - Current climate mitigation policies are not sufficient to meet the Paris temperature target, and ramping up efforts will require rapid learning from the scientific literature on climate policies. This literature is vast and widely dispersed, as well as hard to define and categorise, hampering systematic efforts to learn from it. We use a machine learning pipeline using transformer-based language models to systematically map the relevant scientific literature on climate policies at scale and in real-time. Our “living systematic map” of climate policy research features a set of 84,990 papers, and classifies each of them by policy instrument type, sector, and geography. We explore how the distribution of these papers varies across countries, and compare this to the distribution of emissions and enacted climate policies. Results suggests a potential stark under-representation of industry sector policies, as well as diverging attention between science and policy with respect to economic and regulatory instruments. Y1 - 2025 U6 - https://doi.org/10.1038/s44168-024-00196-0 SN - 2731-9814 VL - 4 PB - Springer Science and Business Media LLC ER - TY - JOUR A1 - Edmondson, Duncan A1 - Flachsland, Christian A1 - aus dem Moore, Nils A1 - Koch, Nicolas A1 - Koller, Florian A1 - Gruhl, Henri A1 - Brehm, Johannes T1 - Anticipatory climate policy mix pathways: a framework for ex-ante construction and assessment applied to the road transport sector JF - Climate Policy Y1 - 2024 U6 - https://doi.org/10.1080/14693062.2024.2397440 SN - 1469-3062 ER - TY - JOUR A1 - Edenhofer, Ottmar A1 - Flachsland, Christian T1 - Eckpunkte einer CO2-Preisreform für Deutschland N2 - . Y1 - 2018 UR - https://www.pik-potsdam.de/de/institut/abteilungen/klimaoekonomie-und-politik/mcc-dokumente-archiv/2018_mcc_working_paper_1_co2-preisreform.pdf PB - Potsdam-Institut für Klimafolgenforschung & Mercator Research Institute on Global Commons and Climate Change (MCC) gemeinnützige GmbH ET - MCC Working paper 1/2018 ER - TY - JOUR A1 - Leipprand, Anna A1 - Flachsland, Christian A1 - Pahle, Michael T1 - Energy transition on the rise : discourses on energy future in the German parliament JF - Innovation: The European Journal of Social Science Research N2 - In this paper we describe energy policy discourses and their story-lines in German parliamentary debates, and trace their evolution over the past decades. Through content analysis and coding with MAXQDA, changes in the discourses and in the use of story-lines by different political parties are analyzed. Our study shows that while the concept of a transition towards a nuclear-free, renewables-based energy system became hegemonic within three decades, the discourse itself underwent major changes. Energy Transition was de-radicalized and became part of a discourse of Ecological Modernization, thus aligning with mainstream economic logic. There are still considerable differences in the story-lines narrated by parliamentarians about pathways to Energy Transition and its effects. Discursive struggles into the meaning and the means of the transition project continue, suggesting that discourse structuration is far from complete. KW - discourse analysis KW - story-lines KW - energy transition KW - renewable energy KW - energy policy KW - Germany Y1 - 2016 U6 - https://doi.org/10.1080/13511610.2016.1215241 IS - 3 SP - 283 EP - 305 PB - 30 ER - TY - JOUR A1 - Döbbeling-Hildebrandt, Niklas A1 - Miersch, Klaas A1 - Khanna, Tarun M. A1 - Bachelet, Marion A1 - Bruns, Stephan B. A1 - Callaghan, Max A1 - Edenhofer, Ottmar A1 - Flachsland, Christian A1 - Forster, Piers M. A1 - Kalkuhl, Matthias A1 - Koch, Nicolas A1 - Lamb, William F. A1 - Ohlendorf, Nils A1 - Steckel, Jan Christoph A1 - Minx, Jan C. T1 - Systematic review and meta-analysis of ex-post evaluations on the effectiveness of carbon pricing JF - Nature Communications N2 - Today, more than 70 carbon pricing schemes have been implemented around the globe, but their contributions to emissions reductions remains a subject of heated debate in science and policy. Here we assess the effectiveness of carbon pricing in reducing emissions using a rigorous, machine-learning assisted systematic review and meta-analysis. Based on 483 effect sizes extracted from 80 causal ex-post evaluations across 21 carbon pricing schemes, we find that introducing a carbon price has yielded immediate and substantial emission reductions for at least 17 of these policies, despite the low level of prices in most instances. Statistically significant emissions reductions range between –5% to –21% across the schemes (–4% to –15% after correcting for publication bias). Our study highlights critical evidence gaps with regard to dozens of unevaluated carbon pricing schemes and the price elasticity of emissions reductions. More rigorous synthesis of carbon pricing and other climate policies is required across a range of outcomes to advance our understanding of “what works” and accelerate learning on climate solutions in science and policy. Y1 - 2024 U6 - https://doi.org/10.1038/s41467-024-48512-w SN - 2041-1723 VL - 15 PB - Springer Science and Business Media LLC ER - TY - JOUR A1 - Amberg, Maximilian A1 - aus dem Moore, Nils A1 - Bekk, Anke A1 - Bergmann, Tobias A1 - Edenhofer, Ottmar A1 - Flachsland, Christian A1 - George, Jan A1 - Haywood, Luke A1 - Heinemann, Maik A1 - Held, Anne A1 - Kalkuhl, Matthias A1 - Kellner, Maximilian A1 - Koch, Nicolas A1 - Luderer, Gunnar A1 - Meyer, Henrika A1 - Nikodinoska, Dragana A1 - Pahle, Michael A1 - Roolfs, Christina A1 - Schill, Wolf-Peter T1 - Reformoptionen für ein nachhaltiges Steuer- und Abgabensystem. Wie Lenkungssteuern effektiv und gerecht für den Klima- und Umweltschutz ausgestaltet werden können JF - Perspektiven der Wirtschaftspolitik N2 - Steuern und Abgaben auf Produkte oder Verbrauch mit gesellschaftlichen Folgekosten (externe Kosten) – sogenannte Pigou- oder Lenkungssteuern – sind ein gesellschaftliches „Win-Win-Instrument“. Sie verbessern die Wohlfahrt und schützen gleichzeitig die Umwelt und das Klima. Dies wird erreicht, indem umweltschädigende Aktivitäten einen Preis bekommen, der möglichst exakt der Höhe des Schadens entspricht. Eine konsequente Bepreisung der externen Kosten nach diesem Prinzip könnte in Deutschland erhebliche zusätzliche Einnahmen erbringen: Basierend auf bisherigen Studien zu externen Kosten wären zusätzliche Einnahmen in der Größenordnung von 348 bis 564 Milliarden Euro pro Jahr (44 bis 71 Prozent der gesamten Steuereinnahmen) möglich. Die Autoren warnen allerdings, dass die Bezifferung der externen Kosten mit erheblichen Unsicherheiten verbunden ist. Damit Lenkungssteuern und -abgaben ihre positiven Lenkungs- und Wohlstandseffekte voll entfalten können, seien zudem institutionelle Reformen notwendig. Y1 - 2022 U6 - https://doi.org/10.1515/pwp-2021-0051 VL - 23 IS - 3 SP - 165 EP - 199 ER -