Applying a science-based systems perspective to dispel misconceptions about climate effects of forest bioenergy
Reviewartikel, 2021

The scientific literature contains contrasting findings about the climate effects of forest bioenergy, partly due to the wide diversity of bioenergy systems and associated contexts, but also due to differences in assessment methods. The climate effects of bioenergy must be accurately assessed to inform policy-making, but the complexity of bioenergy systems and associated land, industry and energy systems raises challenges for assessment. We examine misconceptions about climate effects of forest bioenergy and discuss important considerations in assessing these effects and devising measures to incentivize sustainable bioenergy as a component of climate policy. The temporal and spatial system boundary and the reference (counterfactual) scenarios are key methodology choices that strongly influence results. Focussing on carbon balances of individual forest stands and comparing emissions at the point of combustion neglect system-level interactions that influence the climate effects of forest bioenergy. We highlight the need for a systems approach, in assessing options and developing policy for forest bioenergy that: (1) considers the whole life cycle of bioenergy systems, including effects of the associated forest management and harvesting on landscape carbon balances; (2) identifies how forest bioenergy can best be deployed to support energy system transformation required to achieve climate goals; and (3) incentivizes those forest bioenergy systems that augment the mitigation value of the forest sector as a whole. Emphasis on short-term emissions reduction targets can lead to decisions that make medium- to long-term climate goals more difficult to achieve. The most important climate change mitigation measure is the transformation of energy, industry and transport systems so that fossil carbon remains underground. Narrow perspectives obscure the significant role that bioenergy can play by displacing fossil fuels now, and supporting energy system transition. Greater transparency and consistency is needed in greenhouse gas reporting and accounting related to bioenergy.

forest carbon stock

landscape scale

reference system

greenhouse gas accounting

forest management

energy system transition

Författare

Annette Cowie

NSW Department of Primary Industries

Göran Berndes

Chalmers, Rymd-, geo- och miljövetenskap, Fysisk resursteori

N. S. Bentsen

Köpenhamns universitet

M. Brandao

Kungliga Tekniska Högskolan (KTH)

F. Cherubini

Norges teknisk-naturvitenskapelige universitet

Gustaf Egnell

Sveriges lantbruksuniversitet (SLU)

Brendan George

NSW Department of Primary Industries

L. Gustavsson

Linnéuniversitetet

Marc Hanewinkel

Albert-Ludwigs-Universität Freiburg

Zoe M. Harris

University of Surrey

Imperial College London

Filip Johnsson

Chalmers, Rymd-, geo- och miljövetenskap, Energiteknik

Martin Junginger

Universiteit Utrecht

K. L. Kline

Oak Ridge National Laboratory

Kati Koponen

Teknologian Tutkimuskeskus (VTT)

Jaap Koppejan

ProBiomass

Florian Kraxner

Internationales Institut fuer Angewandte Systemanalyse

P. Lamers

National Renewable Energy Laboratory

Stefan Majer

Deutsches Biomasseforschungszentrum gemeinnützige GmbH (DBFZ)

Eric Marland

Appalachian State University

Gert Jan Nabuurs

Wageningen University and Research

Luc Pelkmans

IEA Bioenergy

Roger Sathre

Linnéuniversitetet

M. Schaub

Eidgenossische Forschungsanstalt fur Wald, Schnee Und Landschaft Eth-Bereichs

C T Smith

University of Toronto

Sampo Soimakallio

Suomen ympäristökeskus SYKE

Floor Van Der Hilst

Universiteit Utrecht

J. Woods

Imperial College London

F. Ximenes

NSW Department of Primary Industries

GCB Bioenergy

1757-1693 (ISSN) 1757-1707 (eISSN)

Vol. In Press

Ämneskategorier

Annan naturresursteknik

Miljöledning

Energisystem

DOI

10.1111/gcbb.12844

Mer information

Senast uppdaterat

2021-06-14