New feed sources key to ambitious climate targets

11321 13 33137 3 70953 document 33137 art%3A10.1186%2Fs13021-015-0040-7.pdf application/pdf dcfcc3ef8aee920d47a25fa98f3bc63e MD5 1564814 2016-02-19 13:33:55 https://pure.iiasa.ac.at/id/eprint/11321/1/art%253A10.1186%252Fs13021-015-0040-7.pdf 11321 1 1 application/pdf text en public cc_by

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published 33138 2 70956 document 33138 lightbox.jpg image/png 4eea3387bef70314b0d5860ad38b9df8 MD5 61552 2016-02-19 13:34:06 https://pure.iiasa.ac.at/id/eprint/11321/2/lightbox.jpg 11321 2 2 image/png other Thumbnails conversion from text to thumbnail_lightbox en public

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/33137 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/33137 http://eprints.org/relation/isIndexCodesVersionOf https://pure.iiasa.ac.at/id/document/33137 archive 351 disk0/00/01/13/21 2016-01-15 08:52:44 2021-08-27 17:24:53 2016-01-15 08:52:44 article show 1 Walsh B. 8806 0000-0003-1689-2309 Rydzak F. 8294 Palazzo A. 1994 0000-0001-8167-9403 Kraxner F. 7904 Herrero M. Schenk P. Ciais P. Janssens I.A. Penuelas J. Niederl-Schmidinger A. Obersteiner M. 7255 0000-0001-6981-2769 New feed sources key to ambitious climate targets pub iis_env prog_esm protein; livestock; biofuels; climate change; food security; BECCS; FeliX Net carbon sinks capable of avoiding dangerous perturbation of the climate system and preventing ocean acidification have been identified, but they are likely to be limited by resource constraints (Nature 463:747.756, [2010]). Land scarcity already creates tension between food security and bioenergy production, and this competition is likely to intensify as populations and the effects of climate change expand. Despite research into microalgae as a next-generation energy source, the land-sparing consequences of alternative souces of livestock feed have been overlooked. Here we use the FeliX model to quantify emissions pathways when microalgae is used as a feedstock to free up to 2 billion hectares of land currently used for pasture and feed crops. Forest plantations established on these areas can conceivaly meet 50 % of global primary energy demand, resulting in emissions mitigation from the energy and LULUC sectors of up to 544 +/- 107 PgC by2100. Further emissions reductions from carbon capture and sequestration (CCS) technology can reduce global atmospheric carbon concentrations close to preindustrial levels by the end of the present century. Though previously thought unattainable, carbon sinks and climate change mitigation of this magnitude are well within the bounds of technological feasibility. 2015-12 published Springer 10.1186/s13021-015-0040-7 XJ-15-278 Carbon Balance and Management; 10:26 [December 2015] [doi:10.1186/s13021-015-0040-7] 322 261 223 165 219 public Carbon Balance and Management 10 1 1-8 26 TRUE 1750-0680 Effects of phosphorus limitations on Life, Earth system and Society (IMBALANCE-P, FP7 610028) FALSE yes info:eu-repo/grantAgreement/EC/FP7/610028/EU/Effects of phosphorus limitations on Life, Earth system and Society/IMBALANCE-P info:eu-repo/semantics/article info:eu-repo/semantics/openAccess