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Earth System Dynamics An interactive open-access journal of the European Geosciences Union
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The requested paper has a corresponding corrigendum published. Please read the corrigendum first before downloading the article.

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Global temperature now exceeds +1.25 °C relative to 1880–1920, similar to warmth of the Eemian period. Keeping warming less than 1.5 °C or CO2 below 350 ppm now requires extraction of CO2 from the air. If rapid phaseout of fossil fuel emissions begins soon, most extraction can be via improved agricultural and forestry practices. In contrast, continued high emissions places a burden on young people of massive technological CO2 extraction with large risks, high costs and uncertain feasibility.
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Articles | Volume 8, issue 3
Earth Syst. Dynam., 8, 577–616, 2017
https://doi.org/10.5194/esd-8-577-2017
Earth Syst. Dynam., 8, 577–616, 2017
https://doi.org/10.5194/esd-8-577-2017

Research article 18 Jul 2017

Research article | 18 Jul 2017

Young people's burden: requirement of negative CO2 emissions

James Hansen et al.

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Cited articles

Abram, N. J., McGregor, H. V., Tierney, J. E., Evans, M. N., McKay, N. P., Kaufman, D. S., and PAGES 2k Consortium: Early onset of industrial-era warming across the oceans and continents, Nature, 536, 411–418, https://doi.org/10.1038/nature19082, 2016.
Ackerman, F. and Stanton, E. A.: Climate risks and carbon prices: revising the social cost of carbon, Economics E-J., 6, 1–25, 2012.
Aiken, A.: Opinion and Order, Case No. 6:15-cv-01517-TC in United States District Court, District of Oregon, Eugene Division, 54 pp., Judge Aiken's Opinion and Order is available at: http://www.columbia.edu/~jeh1/mailings/2016/20161111_EmphaticRulingbyJudgeAiken.pdf, last access: 10 November 2016.
Alec L v. Jackson DDC, No. 11-CV-02235, 12/14/11, United States District Court, District of Columbia, 31 May 2012.
Anderson, K.: Talks in the city of light generate more heat, Nature, 528, 437, 2015.
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The requested paper has a corresponding corrigendum published. Please read the corrigendum first before downloading the article.

Short summary
Global temperature now exceeds +1.25 °C relative to 1880–1920, similar to warmth of the Eemian period. Keeping warming less than 1.5 °C or CO2 below 350 ppm now requires extraction of CO2 from the air. If rapid phaseout of fossil fuel emissions begins soon, most extraction can be via improved agricultural and forestry practices. In contrast, continued high emissions places a burden on young people of massive technological CO2 extraction with large risks, high costs and uncertain feasibility.
Citation
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