Although there is much disagreement about the appropriateness, usefulness, and cost-effectiveness of specific policy instruments, there is a consensus across disciplines that a policy mix, not only single instruments, is needed to fully decarbonize the energy system. However, there is no agreement on assessing the effectiveness and dynamic interaction within a policy mix. As a… Continue reading How can we evaluate the policy mix effectiveness? – A systematic literature review

Assessing and comparing the effects of climate policy measures is of central academic and practical concern. Existing approaches either focus on individual climate policies or the effect of entire climate “policy regimes.” What is missing is an approach that captures and compares the effects of individual climate policies within the context of larger climate policy… Continue reading Assessing and Comparing the Effects of Climate Public Policies – A New Approach

Jurisdictions that rely on emissions trading to control emissions often utilize other environmental or energy policies as well, including policies to support renewable energy and improve energy efficiency. Overlapping policies produce economic interactions that can lead to quite different outcomes from what one might predict after examining the individual policies separately. Prior literature has focused… Continue reading Interactions Between Emissions Trading Systems and Other Policies: Insights from Theory and an Application to China

As climate change intensifies, it is essential to take a wide range of climate scenarios and their consequential impacts into account for adaptation planning. Overshoot scenarios, during which global warming will temporarily exceed the 1.5°C Paris Agreement target before it is brought down again in the following decades, are increasingly likely under current emissions trajectories.… Continue reading Including overshoot risks in long-term evidence-based adaptation planning

Destination Earth (DestinE) is a flagship initiative of the European Commission to develop a highly-accurate digital model (i.e., digital twin) of the Earth to model, monitor and simulate natural phenomena, hazards and the related human activities. A key development of DestinE is the digital twin engine for climate adaptation (Climate DT) to operationalise highly accurate… Continue reading Digital Twin Technology Capability for Climate Change Adaptation

Since the IPCC AR6 WGII report, requests continue to come from countries to explain what transformational adaptation is and how this translates to practice. For example, the recent text on the Global Goal on Adaptation from COP28 specifically calls for more information on what transformational adaptation entails. Recognizing that existing adaptation practices are insufficient for… Continue reading One size fits all? Unpacking transformational adaptation for policy and practice

The core of the 2015 Paris Agreement and accomplishment of its long-term objectives lie in the Nationally Determined Contributions (NDCs). Adaptation commitment in the NDCs represents efforts by each country to adapt to climate impacts and address challenges posed by climate change. The Paris Agreement further established the Global Goal on Adaptation (GGA) and the… Continue reading Will tracking climate adaptation progress in Africa be a myth or reality? Juxtaposing Nationally Determined Contributions and the Global Goal on Adaptation Framework

We provide a welfare-theoretic framework for synthesizing the evidence on the impact of policy evaluations and providing ‚fair‘ comparisons between policy instruments. We show how to integrate different outcome variables of interest, such as costs of a policy, effectiveness, co-benefits and distributional effects in reduced-complexity metrics. We illustrate the concept for an ex-ante evaluation of… Continue reading A welfare theoretical framework to guide policy evaluation

Having the best evidence available on what works under what conditions and why is critical for enhanced climate action and progress towards the Paris Agreement. In this presentation we deal with three fundamental challenges for building a rigorous evidence base for evidence-based climate policy. First, there is an evidence synthesis gap in climate policy evaluation,… Continue reading Living, systematic review ecosystem for understanding what climate policies work

Tobias Kruse (OECD) will present ongoing work on the systematic collection of ex-post empirical evidence on the effectiveness of climate policies as part of the OECD's flagship Inclusive Forum on Carbon Mitigation Approaches (IFCMA) initiative. The IFCMA is OECD’s flagship initiative designed to help improve the global impact of emissions reduction efforts around the world… Continue reading Rigorous evidence on climate policies to inform policy design and implementation