CO2 emissions from biomass combustion for bioenergy: atmospheric decay and contribution to global warming
Francesco Cherubini,Glen P. Peters,Terje Koren Berntsen,Anders Hammer Strømman,Edgar G. Hertwich +4 more
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TLDR
In this paper, a method to estimate the climate impact of CO2 emissions from biomass combustion is proposed, which uses CO2 impulse response functions (IRF) from C cycle models in the elaboration of atmospheric decay functions for biomass-derived CO 2 emissions.Abstract:
Carbon dioxide (CO2) emissions from biomass combustion are traditionally assumed climate neutral if the bioenergy system is carbon (C) flux neutral, i.e. the CO2 released from biofuel combustion approximately equals the amount of CO2 sequestered in biomass. This convention, widely adopted in life cycle assessment (LCA) studies of bioenergy systems, underestimates the climate impact of bioenergy. Besides CO2 emissions from permanent C losses, CO2 emissions from C flux neutral systems (that is from temporary C losses) also contribute to climate change: before being captured by biomass regrowth, CO2 molecules spend time in the atmosphere and contribute to global warming. In this paper, a method to estimate the climate impact of CO2 emissions from biomass combustion is proposed. Our method uses CO2 impulse response functions (IRF) from C cycle models in the elaboration of atmospheric decay functions for biomass-derived CO2 emissions. Their contributions to global warming are then quantified with a unit-based index, the GWPbio. Since this index is expressed as a function of the rotation period of the biomass, our results can be applied to CO2 emissions from combustion of all the different biomass species, from annual row crops to slower growing boreal forest.read more
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Dynamic life-cycle carbon analysis for fast pyrolysis biofuel produced from pine residues: implications of carbon temporal effects.
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References
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Book Chapter
Changes in Atmospheric Constituents and in Radiative Forcing
Piers M. Forster,Venkatachalam Ramaswamy,Paulo Artaxo,Terje Koren Berntsen,Richard Betts,David W. Fahey,Jim Haywood,Judith Lean,David C. Lowe,Gunnar Myhre,John Nganga,Ronald G. Prinn,Graciela B. Raga,Michael Schulz,Rob van Dorland,Greg Bodeker,Oliver Boucher,William D. Collins,T.J. Conway,Edward J. Dlugokencky,James W. Elkins,David Etheridge,P. Foukal,Paul J. Fraser,Marvyn Geller,Fortunat Joos,Charles D. Keeling,Stefan Kinne,K. Lassey,Ulrike Lohmann,Andrew C. Manning,S. A. Montzka,David E. Oram,K. O'Shaughnessy,S. Piper,Gian-Kasper Plattner,Michael Ponater,Navin Ramankutty,G. Reid,David Rind,Karen H. Rosenlof,Robert Sausen,D. Schwarzkopf,S.K. Solanki,Garry Stenchikov,N. Stuber,Toshihiko Takemura,Christiane Textor,R. Wang,Ray F. Weiss,T. Whorf +50 more
Journal ArticleDOI
Relationship between wind speed and gas exchange over the ocean
TL;DR: In this paper, the influence of variability in wind speed on the calculated gas transfer velocities and the possibility of chemical enhancement of CO2 exchange at low wind speeds over the ocean is illustrated using a quadratic dependence of gas exchange on wind speed.
Journal ArticleDOI
Climate change : the IPCC scientific assessment
TL;DR: A review of the intergovernmental panel on climate change report on global warming and the greenhouse effect can be found in this paper, where the authors present chemistry of greenhouse gases and mathematical modelling of the climate system.
Journal ArticleDOI
Global response of terrestrial ecosystem structure and function to CO2 and climate change: results from six dynamic global vegetation models
Wolfgang Cramer,Alberte Bondeau,F. Ian Woodward,I. Colin Prentice,Richard Betts,Victor Brovkin,Peter M. Cox,Veronica A. Fisher,Jonathan A. Foley,Andrew D. Friend,Christopher J. Kucharik,Mark R. Lomas,Navin Ramankutty,Stephen Sitch,Benjamin Smith,Andrew White,Christine Young-Molling +16 more
TL;DR: In this paper, the possible responses of ecosystem processes to rising atmospheric CO2 concentration and climate change are illustrated using six dynamic global vegetation models that explicitly represent the interactions of ecosystem carbon and water exchanges with vegetation dynamics.
Journal ArticleDOI
Relative contributions of greenhouse gas emissions to global warming
Daniel A. Lashof,Dilip R. Ahuja +1 more
TL;DR: In this article, an index of global warming potential for methane, carbon monoxide, nitrous oxide, chlorofluorocarbons and CFCs relative to that of carbon dioxide was proposed.