Carbon dioxide removal technologies are not born equal

Datos Bibliográficos

ID15550404
AutoresJessica Strefler (0000-0002-5279-4629, Climate Foundation, autor de correspondencia), Nico Bauer (0000-0002-0211-4162, Climate Foundation), Florian Humpenöder (0000-0003-2927-9407, Climate Foundation), David J Klein (0000-0001-5022-5839), David Klein (0000-0002-3527-8454, Climate Foundation), Alexander Popp (0000-0001-9500-1986, Climate Foundation), Elmar Kriegler (0000-0002-3307-2647, Climate Foundation)
Año2021
Volumen16
Número7
Páginas074021-074021
Fecha de publicación2021-06-10
Peer ReviewedSí
Open AccessSí
TipoARTICLE
RevistaEnvironmental Research Letters (JOURNAL)
Identificadores de la revistaISSN: 1748-9326 • E-ISSN: 1748-9326
EditorialIOP Publishing (PUBLISHER • GB)
DOI10.1088/1748-9326/ac0a11
OpenAlexW3169188298
IdiomaEN
Citas recibidas23
Referencias citadas45

Technologies for carbon dioxide removal (CDR) from the atmosphere have been recognized as an important part of limiting warming to well below 2 °C called for in the Paris Agreement. However, many scenarios so far rely on bioenergy in combination with carbon capture and storage as the only CDR technology. Various other options have been proposed, but have scarcely been taken up in an integrated assessment of mitigation pathways. In this study we analyze a comprehensive portfolio of CDR options in terms of their regional and temporal deployment patterns in climate change mitigation pathways and the resulting challenges. We show that any CDR option with sufficient potential can reduce the economic costs of achieving the 1.5 °C target substantially without increasing the temperature overshoot. CDR helps to reduce net CO 2 emissions faster and achieve carbon neutrality earlier. The regional distribution of CDR deployment in cost-effective mitigation pathways depends on which options are available. If only enhanced weathering of rocks on croplands or re- and afforestation are available, Latin America and Asia cover nearly all of global CDR deployment. Besides fairness and sustainability concerns, such a regional concentration would require large international transfers and thus strong international institutions. In our study, the full portfolio scenario is the most balanced from a regional perspective. This indicates that different CDR options should be developed such that all regions can contribute according to their regional potentials

Business · Carbon capture and storage (timeline · Carbon dioxide · Carbon sequestration · Climate change · Economics · Environmental economics · Greenhouse gas · Natural resource economics · Portfolio · Software deployment · Sustainability · Atmospheric and Environmental Gas Dynamics · Carbon Dioxide Capture Technologies · Climate Change Policy and Economics · Computer Science · Environmental Science · Ecology