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Europe & Green Deal
Staying the course in turbulent times: A dialogue with the Ariadne Project on future EU energy and climate policy
The Ariadne project provides the results of the three-day event on EU climate and energy policy (9-11.12.2024) in Brussels.
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Governance & Institutions
Under scrutiny: How EU diplomacy handled the design and launch of the Carbon Border Adjustment Mechanism
The European Union’s outreach to third countries during the introduction of the Carbon Border Adjustment Mechanism was rigid and uncoordinated, new Ariadne analysis has found. Researchers investigated how the EU organized its diplomacy to counter trade concerns during the …
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Hydrogen
Low Carbon Hydrogen: strategic approach missing in EU’s regulatory framework, but crucial to ensure climate protection
The use of low carbon hydrogen based on non-renewable sources is considered as a transitional solution for the market ramp-up of renewable hydrogen. A new Ariadne paper shows that a strategic approach clarifying the role of non-renewable low carbon …
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Governance & Institutions, Heating transition
Knowing what works: How to improve the evaluation of existing climate protection measures
In order to assess the success or failure of strategies to reduce emissions in the building sector, reliable data, evaluation of all policy programs, good timing of evaluations and their inclusion in political reform processes are necessary – foundations …
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Governance & Institutions
Options for a targeted reform of the European climate and energy Governance Regulation
The European Governance Regulation is the pivotal procedural control element for achieving the EU’s 2030 energy and climate targets. However, since it came into force in 2018, it has been seen as deficient. Ariadne experts now discuss the reform …
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Paths to climate neutrality
Gabriele Tirelli / Unsplash Transport transition
Heliberto Arias / Unsplash Electricity transition
Federico-Beccari / Unsplash Heating transition
Julian Hochgesang on Unsplash Industrial transition
Maxim Tolchinskiy on Unsplash Hydrogen
Peter Schreiber / Shutterstock Tax reform
StellrWeb on Unsplash Governance
Moritz Lüdtke / Unsplash Europa & Green Deal
Christian Lue / Unsplash 
Publications
Analysis: Selling CBAM – Diplomacy for the European Union’s Carbon Border Adjustment Mechanism
The analysis addresses the question of how the EU’s key institutions understood their diplomatic role with regard to the Carbon Border Adjustment Mechanism. Which EU institutions communicated with third coun-tries? What channels did they use? Who was taking the …
Analysis: Low carbon hydrogen in the European Union – A coherent regulatory framework
Renewable hydrogen is necessary for the decarbonization of sectors that are difficult to electrify, such as industry and aviation, and as a storage medium for surplus electricity from renewable sources. In this context, the following analysis of the EU …
Dossier: Climate-damaging subsidies correspond to negative CO2 prices
The aim of this dossier is to convert the significant level of subsidies in the transport sector into negative CO2 prices; this contributes to the political discourse by categorising the climate policy significance of the subsidies. The implicit negative …
Brief: Making price signals comparable – subsidies as negative CO2 prices
Calculations in a new Ariadne study show that subsidies in the transport sector sometimes correspond to negative CO2 prices of between -€70 and -€690 per tonne of CO2. Germany’s current tax and levy system in the transport sector is …
Background: Governance capacities in reflexive climate policymaking: the scope, role, and institutional arrangements of policy mix evaluation in the German domestic buildings sector
In this research, we are interested in the governance of the building sector and the role of evaluation climate policy making : the government-mandated processes used to evaluate policy in terms of the actors, organisations and ministries involved in …
We are Ariadne
The people behind Ariadne
Felix Kattelmann
Universität Stuttgart – Institut für Energiewirtschaft und Rationelle Energieanwendung
Erdal Tekin
Universität Stuttgart – Institut für Energiewirtschaft und Rationelle Energieanwendung (IER)