Journal ArticleDOI
Towards the implementation of sustainable biofuel production systems
Diego Correa,Hawthorne L. Beyer,Joseph Fargione,Jason Hill,Hugh P. Possingham,Hugh P. Possingham,Skye R. Thomas-Hall,Peer M. Schenk +7 more
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TLDR
In this paper, the environmental impacts of alternative approaches to biofuel production (i.e., first, second, and third generation biofuels), with a focus on biodiversity and ecosystem services, were contrasted to develop a set of criteria for guiding the identification of sustainable bio-fuel production alternatives, as well as strategies for decreasing the economic barriers that prevent the implementation of more sustainable bio fuel production systems.Abstract:
Novel energy production systems are needed that not only offer reductions in greenhouse gas emissions but also cause fewer overall environmental impacts. How to identify and implement more sustainable biofuel production alternatives, and how to overcome economic challenges for their implementation, is a matter of debate. In this study, the environmental impacts of alternative approaches to biofuel production (i.e., first, second, and third generation biofuels), with a focus on biodiversity and ecosystem services, were contrasted to develop a set of criteria for guiding the identification of sustainable biofuel production alternatives (i.e., those that maximize socioeconomic and environmental benefits), as well as strategies for decreasing the economic barriers that prevent the implementation of more sustainable biofuel production systems. The identification and implementation of sustainable biofuel production alternatives should be based on rigorous assessments that integrate socioeconomic and environmental objectives at local, regional, and global scales. Further development of environmental indicators, standardized environmental assessments, multi-objective case studies, and globally integrated assessments, along with improved estimations of biofuel production at fine spatial scales, can enhance the identification of more sustainable biofuel production systems. In the short term, several governmental mandates and incentives, along with the development of financial and market-based mechanisms and applied research partnerships, can accelerate the implementation of more sustainable biofuel production alternatives. The set of criteria and strategies developed here can guide decision making towards the identification and adoption of sustainable biofuel production systems.read more
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Sustainability of the four generations of biofuels – A review
Journal ArticleDOI
Bioenergy in China: Evaluation of domestic biomass resources and the associated greenhouse gas mitigation potentials
Yating Kang,Qing Yang,Pietro Bartocci,Hongjian Wei,Sylvia Shuhan Liu,Zhujuan Wu,Hewen Zhou,Haiping Yang,Francesco Fantozzi,Hanping Chen +9 more
TL;DR: This study measures the energy potential of China's domestic biomass resources from 2000 to 2016 and draws the spatial-temporal variation trajectories at provincial resolution to provide valuable guidance on the exploitation ofChina's untapped biomass resources for the mitigation of global climate change.
Journal ArticleDOI
Two-stage cultivation strategy for simultaneous increases in growth rate and lipid content of microalgae: A review
Maniruzzaman A. Aziz,Khairul Anuar Kassim,Zahra Shokravi,Fauzan Mohd Jakarni,Hongyuan Liu,Nabilah Zaini,Lian See Tan,A. B. M. Saiful Islam,Hoofar Shokravi +8 more
TL;DR: In this article, a two-stage cultivation strategy (TSCS) is proposed to increase the lipid content in microalgae strains without decreasing the growth rate, which is a prerequisite for improving the economic viability of micro-algae-derived biofuel production.
Journal ArticleDOI
Insight into Pretreatment Methods of Lignocellulosic Biomass to Increase Biogas Yield: Current State, Challenges, and Opportunities
Javier Ulises Hernández-Beltrán,Inty Omar Hernández-De Lira,Mónica María Cruz-Santos,Alexia Saucedo-Luevanos,Fernando Hernández-Terán,Nagamani Balagurusamy +5 more
TL;DR: In this paper, the authors discuss the strategies to increase the carbon recovery in the form of methane by way of amending pretreatments to lower inhibitory effects on microbial groups and by optimizing process conditions.
Journal ArticleDOI
Bio-aviation Fuel: A Comprehensive Review and Analysis of the Supply Chain Components
Stephen Doliente,Stephen Doliente,Aravind Narayan,John Frederick D. Tapia,John Frederick D. Tapia,Nouri J. Samsatli,Yingru Zhao,Sheila Samsatli +7 more
TL;DR: In this paper, a detailed analysis of the supply chain components of bio-aviation fuel provision: feedstocks, production pathways, storage, and transport are investigated and compared in order to make recommendations on short and long-term strategies that could be employed internationally.
References
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Journal ArticleDOI
The value of the world's ecosystem services and natural capital
Robert Costanza,Rudolf de Groot,Stephen Farberk,Monica Grasso,Bruce Hannon,Karin E. Limburg,Shahid Naeem,José M. Paruelo,Robert Raskin,Paul Suttonkk,Marjan van den Belt +10 more
TL;DR: In this paper, the authors have estimated the current economic value of 17 ecosystem services for 16 biomes, based on published studies and a few original calculations, for the entire biosphere, the value (most of which is outside the market) is estimated to be in the range of US$16-54 trillion (10^(12)) per year, with an average of US $33 trillion per year.
Journal ArticleDOI
Biodiesel from microalgae.
TL;DR: As demonstrated here, microalgae appear to be the only source of renewable biodiesel that is capable of meeting the global demand for transport fuels.
Journal ArticleDOI
A safe operating space for humanity
Johan Rockström,Johan Rockström,Will Steffen,Will Steffen,Kevin J. Noone,Åsa Persson,Åsa Persson,F. Stuart Chapin,Eric F. Lambin,Timothy M. Lenton,Marten Scheffer,Carl Folke,Carl Folke,Hans Joachim Schellnhuber,Hans Joachim Schellnhuber,Björn Nykvist,Björn Nykvist,Cynthia A. de Wit,Terry P. Hughes,Sander van der Leeuw,Henning Rodhe,Sverker Sörlin,Sverker Sörlin,Peter K. Snyder,Robert Costanza,Robert Costanza,Uno Svedin,Malin Falkenmark,Malin Falkenmark,Louise Karlberg,Louise Karlberg,Robert W. Corell,Victoria J. Fabry,James Hansen,Brian Walker,Brian Walker,Diana Liverman,Diana Liverman,Katherine Richardson,Paul J. Crutzen,Jonathan A. Foley +40 more
TL;DR: Identifying and quantifying planetary boundaries that must not be transgressed could help prevent human activities from causing unacceptable environmental change, argue Johan Rockstrom and colleagues.
Journal ArticleDOI
Microalgae for biodiesel production and other applications: A review
TL;DR: The various aspects associated with the design of microalgae production units are described, giving an overview of the current state of development of algae cultivation systems (photo-bioreactors and open ponds).
Journal ArticleDOI
Use of U.S. Croplands for Biofuels Increases Greenhouse Gases Through Emissions from Land-Use Change
Tim Searchinger,Ralph E. Heimlich,Richard A. Houghton,Fengxia Dong,Amani Elobeid,Jacinto F. Fabiosa,Simla Tokgoz,Dermot J. Hayes,Tun-Hsiang Yu +8 more
TL;DR: This article found that corn-based ethanol, instead of producing a 20% savings, nearly doubled greenhouse emissions over 30 years and increased greenhouse gases for 167 years, by using a worldwide agricultural model to estimate emissions from land-use change.