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Assessment of bio-CCS in 2°C compatible scenarios

Since the adoption of the 5th Assessment Report of the ⁠ IPCC ⁠ (AR5), there has been a growing discussion of methods for Carbon Dioxide Removal (CDR) from the atmosphere. With CDR as a supplement to GHG-emission reductions it would be possible to stabilize the ⁠ CO2 ⁠ concentration in the atmosphere more quickly or perhaps even to reduce it. Bioenergy combined with carbon capture and storage (BECCS) is the most commonly discussed CDR approach in the literature where it has been assessed to have the greatest carbon sequestration potential. This report provides a critical assessment of the assumptions behind the AR5 GHG-emission scenarios with regards to BECCS. Veröffentlicht in Climate Change | 09/2019.

Assumptions on potentials for Carbon Dioxide Removals in the EU

This report analyses and critically reviews assumptions on natural carbon dioxide removal (CDR) and storage potentials with a view to the objectives of the EU Land Use, Land-Use Change and Forestry (⁠ LULUCF ⁠) and Carbon Removal Certification Framework (CRCF) legislation agreed until February 2024. Therefore, EU impact assessment reports that were published over a period of eight years were analysed and compared with estimates in the scientific literature. It shows that potentials from the impact assessments are rather at the lower end of the range. While highest CDR potentials for 2050 in studies underlying the EU legislation assume -400 to -500 Mt CO 2 eq, literature studies often operate in the range of -500 to -600 Mt CO 2 eq, with one estimate reaching almost -800 Mt CO 2 eq. Veröffentlicht in Climate Change | 35/2024.

Short Typology of Carbon Dioxide Removals

On 30 November 2022, the Commission proposed a voluntary EU carbon removal certification framework (CRCF) in order to promote carbon dioxide removal (CDR) through natural and technical approaches and spur investments into the respective technologies. This paper analyzes CDR typologies, compares them to CDR in the CRCF and identifies room for improvements. The aim is to stimulate the public debate by highlighting key aspects and implications of CDR activities that should be taken into account in implementing the framework and in future CDR policy-making. Veröffentlicht in Fact Sheet.

How to measure and quantify biogenic carbon removals

Robust quantification of carbon dioxide removals (CDR) lies at the heart of any certification mechanism and is central for their functionality and environmental integrity. For the establishment of a Carbon Removal Certification Framework (CRCF) that was recently adopted, the EU Commission is currently conducting an inventory of the existing knowledge base. The objective of most certification mechanisms is to turn greenhouse gas emission reductions or removals into tradable commodities. To achieve this, each certificate issued by a mechanism must reliably represent the same amount of greenhouse gas reduced or removed from the atmosphere. The report compares selected standards to work out advantages and disadvantages of existing monitoring methods for an EU certification of carbon removals. Veröffentlicht in Climate Change | 42/2024.

Certification of Carbon Dioxide Removals

On 30 November 2022, the Commission proposed an EU carbon removal certification framework (CRCF). The proposed framework could undermine the environmental integrity of EU climate policies. This risk is aggravated by the fact that the EU has not agreed on the role of removals for the time past the year 2030. This report assesses the Commission’s proposal for the CRCF and discusses interlinkages of the CRCF with other pieces of EU climate law. The report provides an overview of the proposal’s main elements and assesses them. Criteria for assessment include (1) whether the proposal strengthens EU climate policies, (2) whether it safeguards the integrity of climate policies, (3) whether it contributes to strong environmental policies and (4) whether it takes account of other aspects relevant for the uptake of carbon removals, such as energy consumption, cost saving, and innovations. Veröffentlicht in Climate Change | 13/2023.

Sustainability criteria for carbon dioxide removals

In November 2022, the European Commission put forward a proposal for a regulation for a Carbon Removal Certification Framework (CRCF). The principles laid out in the CRCF proposal of the European Commission and the proposed amendments by Council and European Parliament set minimum sustainability criteria. They are vague and require specification into executable criteria for certification. This report examines the robustness of the sustainability criteria included in the CRCF proposal and discuss different concepts for sustainability criteria. Veröffentlicht in Fact Sheet.

Targeting Climate Politics

This final report of the project “Geoengineering: Mögliche Synergien und Effekte mit den Sustainable Development Goals”, outlines major questions around geoengineering technologies – both Carbon Dioxide Removal (CDR) and Solar Radiation Modification (SRM) – investigating its technical and environmental components as well as anchoring it in the context of a target-driven climate and sustainability politics. Based on these components, the report provides several recommendations for policy. Veröffentlicht in Climate Change | 53/2024.

Carbon Capture and Storage (CCS)

The UBA position paper assesses the usefullness of carbon capture and storage (CCS for short) as a climate protection instrument. It describes guidelines for sustainable use, as well as the necessary monitoring and risk prevention. The effects of CCS on human health and the environment are also considered. According to the paper, CCS cannot replace greenhouse gas reductions and the rapid phase-out of fossil fuels. CCS must also not lead to perpetuate fossil energy supply structures and hinder the expansion of renewable energies. The UBA therefore proposes that the technology should first be tested in waste incineration plants where heat and electricity are generated from non-recyclable waste, but where CO2 is also produced. Quelle: umweltbundesamt.de

Short typology of carbon dioxide removals

On 30 November 2022, the Commission proposed a voluntary EU carbon removal certification framework (CRCF) in order to promote carbon dioxide removal (CDR) through natural and technical approaches and spur investments into the respective technologies. This paper analyzes CDR typologies, compares them to CDR in the CRCF and identifies room for improvements. The aim is to stimulate the public debate by highlighting key aspects and implications of CDR activities that should be taken into account in implementing the framework and in future CDR policy-making. Quelle: umweltbundesamt.de

Sustainability criteria for carbon dioxide removals

In November 2022, the European Commission put forward a proposal for a regulation for a Carbon Removal Certification Framework (CRCF). The principles laid out in the CRCF proposal of the European Commission and the proposed amendments by Council and European Parliament set minimum sustainability criteria. They are vague and require specification into executable criteria for certification. This report examines the robustness of the sustainability criteria included in the CRCF proposal and discuss different concepts for sustainability criteria. Quelle: www.umweltbundesamt.de

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