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Carbon markets play an important role in firms’ and governments’ climate strategies. Carbon crediting mechanisms allow project developers to earn carbon credits through mitigation projects. Several studies have raised concerns about environmental integrity, though a systematic evaluation is missing. We synthesized studies relying on experimental or rigorous observational methods, covering 14 studies on 2346 carbon mitigation projects and 51 studies investigating similar field interventions implemented without issuing carbon credits. The analysis covers one-fifth of the credit volume issued to date, almost 1 billion tons of CO2e.Weestimate that less than 16% of the carbon credits issued to the investigated projects constitute real emission reductions, with 11% for cookstoves, 16% for SF6 destruction, 25% for avoided deforestation, 68% for HFC-23 abatement, and no statistically significant emission reductions from wind power and improved forest management projects. Carbon crediting mechanisms need to be reforme
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On the pathway to climate neutrality, EU member states are obliged to submit national energy and climate plans (NECPs) with planned policies and measures for decarbonization until 2030 and long-term strategies (LTSs) for further decarbonization until 2050. We analysed the 27 NECPs and 15 LTSs submitted by October 2020 using an inter-rater method. This paper focuses on energy sufficiency policies and measures in the transport sector. We found a total of 236 sufficiency policy measures with more than half of them (53 %) in the transport / mobility sector. Additionally, we found 41 measures that address two or more sectors (cross-sectoral measures). From the explicit sufficiency measures within the transport sector, 82 % aim at modal shift. A reduction of transport volumes is much less addressed. Countries plan to use mainly fiscal and economic instruments. Those are in many cases investments in infrastructure of low-carbon transport modes and taxation instruments. Plans on decarbonisation measures are also frequently mentioned. The majority of cross-sectoral measures are carbon taxes or tax reforms, also economic instruments. On the one hand it is encouraging that Member States strongly emphasize the transport sector in their NECPs and LTSs – at least quantitatively and concerning sufficiency measures – because this sector has been the worst-performing in climate mitigation so far. On the other hand, the measures described seem not sufficient to reach ambitious climate targets, and we doubt that the presented set of policy instruments will get the transport sector on track to mitigate greenhouse gas emissions in the necessary extent.
long-term strategies 11.10.2021 Publikationen Energie & Klimaschutz Bücher

Several streams of research have discussed important aspects of social inequalities and justice in the context of climate, energy, and environmental issues. However, there is often a narrow focus on specific aspects, bearing the risk that tensions and trade-offs for policy are easily overlooked, and sometimes involving a loose, implicit, inconsistent, or uncritical use of the term justice. I argue to clearly separate the empirical analysis of inequalities from their normative assessment, and to adequately consider the large variety of potentially relevant inequalities as well as the variety of justice principles. In support of such an approach, this article suggests categorizations of (1) basic dimensions of social inequality in the context of climate and environment; (2) different social impacts of climate and environmental policies; and (3) different justice principles. The overall aim is to have typologies and an organizing framework at hand that help to systematically identify a broad range of inequalities which can then be discussed against different justice principles. This shall allow a better detection of intersectionality and policy trade-offs as well as broader-based normative judgments in research and in policy assessments (evaluations).
07.11.2022 Umweltrecht Publikationen Umweltrecht & Governance Bücher

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The agriculture, forestry and other land use (AFOLU) sectors contribute substantially to the net global anthropogenic greenhouse gas (GHG) emissions. To reduce these emissions under the Paris Agreement, effective mitigation actions are needed that require engagement of multiple stakeholders. Emission reduction also requires that accurate, consistent and comparable datasets are available for transparent reference and progress monitoring. Availability of free and open datasets and portals (referred to as independent data) increases, offering opportunities for improving and reconciling estimates of GHG emissions and mitigation options. Through an online survey, we investigated stakeholders’ data needs for estimating forest area and change, forest biomass and emission factors, and AFOLU GHG emissions. The survey was completed by 359 respondents from governmental, intergovernmental and non-governmental organizations, research institutes and universities, and public and private companies. These can be grouped into data users and data providers. Our results show that current open and freely available datasets and portals are only able to fulfil stakeholder needs to a certain degree. Users require a) detailed documentation regarding the scope and usability of the data, b) comparability between alternative data sources, c) uncertainty estimates for evaluating mitigation options, d) more region-specific and detailed data with higher accuracy for sub-national application, e) regular updates and continuity for establishing consistent time series. These requirements are found to be key elements for increasing overall transparency of data sources, definitions, methodologies and assumptions, which is required under the Paris Agreement. Raising awareness and improving data availability through centralized platforms are important for increasing engagement of data users. In countries with low capacities, independent data can support countries’ mitigation planning and implementation, and related GHG reporting. However, there is a strong need for further guidance and capacity development (i.e. ‘readiness support’) on how to make proper use of independent datasets. Continued investments will be needed to sustain programmes and keep improving datasets to serve the objectives of the many stakeholders involved in climate change mitigation and should focus on increased accessibility and transparency of data to encourage stakeholder involvement.
31.07.2018 Energie & Klimaschutz Bücher & Fachartikel Peer reviewed

An important share of Middle European countries’ energy consumption is used for space heating. The latter is determined by building energy efficiency, user practices, and floor space. Research and policy tend to focus on the first two factors and neglect the latter. In the German residential sector, per capita floor space has been increasing for decades, causing important rebound effects. Reducing per capita floor space by only 2 m2 could bring 6% savings in heat energy. Senior homeowners are a relevant target group. When grown-up children move out, they typically remain in the homes constructed for a family. 13% of all households in Germany belong to this group. Their average floor space is 70.6 m2 per capita, compared to the national average of 43.8 m2. These homes are often in need of modernization, and not very energy efficient or barrier-free. The paper presents first results of the transdisciplinary research project “LivingSpaces”, carried out in the district of Steinfurt in Western Germany. Its objective is to develop and assess policy instruments which support senior citizens in choosing housing alternatives that are both space-saving and suitable for their future needs – for example in terms of accessibility, energy efficiency, convenience, or community. Examples are moving to a smaller place, letting out parts of the home, or rebuilding the home so it can be shared with others. The paper will present results of a representative survey that systematically explores senior citizens’ attitudes towards various housing options. Furthermore, it will explain the communication approach that is at the heart of LivingSpaces and consists of several modules such as an awareness campaign, an innovative personal advice service “new housing in old age”, workshops, and setting up a support structure that helps with practical issues such as legal, financial or organizational questions.
Energiewende und Klimapolitik Publikationen Produkte & Stoffströme Bücher

Germany’s third largest state, Baden Württemberg, was the first to mandate the installation of renewable heating technologies in 2008. Owners of a heating system need to employ a minimum share of renewable energy of 15% of the heat demand when the heating system is replaced. Instead of employing a renewable heating system, the building owner can also opt for efficiency measures, including insulation of the building. A part of the obligation can be fulfilled by carrying out an energy audit based on an individual building roadmap. For the first time, the effects of the Renewable Heating Act Baden-Württemberg have been evaluated in detail, based on statistical analyses of the available verifications, on market observations, interviews with 1000 clients, 150 heating installers, 250 chimney sweepers, 50 building companies, clients of energy audits and various stakeholder workshops and interviews, leading to a model calculation of estimated savings of the law. The paper will present the empirical findings and investigate the various mechanisms of the renewable and efficiency requirement, including direct and indirect effects, trigger effects, windfall effects and wait-and-see attitudes. Overall, the law provides positive impetus for additional installations of renewable energies, more energy efficiency and advice. This effect results from the sum of different effects: through the explicit requirements, it provides an additional direct incentive to expand renewable energies and substitute measures. Indirectly, the law strengthens the involvement with renewable energies both in the consultation process with heating engineers and planners/architects and in the purchase decision of customers. Additional energy consulting is also encouraged. However, the positive market figures compared to the federal trend are not completely causally attributable to the EWärmeG.The paper will conclude with a set of improvements of the Act itself and the surrounding policy landscape.
building requirements 01.07.2019 Publikationen Energie & Klimaschutz Bücher

In order to calculate the financial return of energy efficiency measures, a cost–benefit analysis (CBA) is a proven tool for investors. Generally, however, most CBAs for investors have a narrow focus, which is — simply speaking — on investment costs compared with energy cost savings over the life span of the investment. This only provides part of the full picture. Ideally, a comprehensive or extended CBA would take additional benefits as well as additional costs into account. The objective of this paper is to reflect upon integrating into a CBA two important cost components: transaction costs and energy efficiency services — and how they interact. Even though this concept has not been carried out to the knowledge of the authors, we even go a step further to try to apply this idea. In so doing, we carried out a meta-analysis on relevant literature and existing data and interviewed a limited number of energy experts with comprehensive experience in carrying out energy services. Even though data is hardly available, we succeeded in constructing three real-world cases and applied an extended CBA making use of information gathered on transaction costs and energy services costs. We were able to show that, despite these additional cost components, the energy efficiency measures are economically viable. Quantitative data was not available on how energy services reduce transaction costs; more information on this aspect could render our results even more positive. Even though empirical and conceptual research must intensify efforts to design an even more comprehensive CBA, these first-of-its-kind findings can counterargue those that believe energy efficiency is not worth it (in monetary terms) due to transaction costs or energy services costs. In fact, this is good news for energy efficiency and for those that seek to make use of our findings to argue in favor of taking up energy efficiency investments in businesses
Cost–Benefit Analysis 30.12.2020 Publikationen Energie & Klimaschutz Bücher