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Carbon Dioxide Removal


Direct Air Capture

Direct air capture is the technique of scrubbing carbon dioxide directly from the sky through large mechanical facilities. The technique can be used to obtain carbon for making a byproduct or fuel. Direct air capture and storage (DACS) means storing that carbon dioxide in a long-term reservoir. The two main approaches involve either (1) liquids or surfaces that chemically interact with carbon dioxide, or (2) membranes that physically trap the carbon dioxide on solid surfaces.
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Evaluating climate geoengineering proposals in the context of the Paris Agreement temperature goals

2018
Scholarly Work
Mark G. Lawrence, Stefan Schäfer, Helene Muri, Vivian Scott, Andreas Oschlies, Naomi E. Vaughan, Olivier Boucher, Hauke Schmidt, Jim Haywood, Jürgen Scheffran
This paper assesses the degree to which proposed climate geoengineering techniques could contribute significantly to achieving the Paris Agreement temperature goals and the main open socio-political and governance issues and research needs.

Negative emissions—Part 1: Research landscape and synthesis

2018
Scholarly Work
Jan C Minx, William F Lamb, Max W Callaghan, Sabine Fuss, Jérôme Hilaire, Felix Creutzig, Thorben Amann, Tim Beringer, Wagner de Oliveira Garcia, Jens Hartmann, Tarun Khanna, Dominic Lenzi, Gunnar Luderer, Gregory F Nemet, Joeri Rogelj, Pete Smith, Jose Luis Vicente Vicente, Jennifer Wilcox, Maria del Mar Zamora Dominguez
This paper, part 1 of a 3 part series on NETs, clarifies the role of NETs in climate change mitigation scenarios, their ethical implications, as well as the challenges involved in bringing the various NETs to the market and scaling them up in time.

Negative emissions—Part 2: Costs, potentials and side effects

2018
Scholarly Work
Sabine Fuss, William F Lamb, Max W Callaghan, Jérôme Hilaire, Felix Creutzig, Thorben Amann, Tim Beringer, Wagner de Oliveira Garcia, Jens Hartmann, Tarun Khanna, Gunnar Luderer, Gregory F Nemet, Joeri Rogelj, Pete Smith, José Luis Vicente Vicente, Jennifer Wilcox, Maria del Mar Zamora Dominguez, Jan C Minx
This paper, part 2 of a 3 part series on negative emissions, presents estimates of costs, potentials, and side-effects for negative emission technologies.

Negative emissions—Part 3: Innovation and upscaling

2018
Scholarly Work
Gregory F Nemet, Max W Callaghan, Felix Creutzig, Sabine Fuss, Jens Hartmann, Jérôme Hilaire, William F Lamb, Jan C Minx, Sophia Rogers, Pete Smith
This paper finds that if NETs are to be deployed at the levels required to meet 1.5 °C and 2 °C targets, then important post-R&D issues will need to be addressed, including incentives for early deployment, niche markets, scale-up, and demand.

Update on Climate Geoengineering in Relation to the Convention on Biological Diversity: Potential Impacts and Regulatory Framework

2016
Scientific Report
Secretariat of the Convention on Biological Diversity
This report provides an update, including regulatory developments, to the CBD's 2012 Technical Series No. 66: Geoengineering in Relation to the Convention on Biological Diversity report on the potential impacts of geoengineering.

Impacts of Climate-Related Geoengineering on Biological Diversity

2012
Scientific Report
Secretariat of the Convention on Biological Diversity
This study compiles and synthesizes available scientific information on the possible impacts of a range of geoengineering techniques on biodiversity, including preliminary information on associated social, economic and cultural considerations.

A comparative global assessment of potential negative emissions technologies

2012
Scholarly Work
Duncan McLaren
This paper provides a global assessment of around 30 prospective NETs, drawing conclusions on how NETs will contribute to safe carbon budgets, the governance challenges of NETs, and the potential role of carbon markets.

IPCC Expert Meeting on Geoengineering

2011
Scientific Report
Intergovernmental Panel on Climate Change (IPCC)
This meeting report summarizes discussions of three Working Groups to the IPCC's Fifth Assessment Report (AR5) on geoengineering, including carbon dioxide removal.

A Coordinated Strategy Could Focus Federal Geoengineering Research and Inform Governance Efforts

2010
Scientific Report
United States Government Accountability Office
This report examines the state of geoengineering science, federal involvement in geoengineering, the extent to which federal laws and international agreements apply to geoengineering, and any governance challenges around geoengineering activities.

Geoengineering the Climate: Science, Governance and Uncertainty

2009
Scientific Report
The Royal Society
This report presents an independent scientific review of the range of geoengineering methods and introduces and addresses the key policy questions surrounding geoengineering that the international community needs to confront.

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