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Can geoengineering be green?

Author(s): Marland GK

Published: September, 2010

Publisher: Issues in Science and Technology

Tags: Afforestation, Air Capture, Terrestrial Carbon Storage, Environmental Side-Effects

URL: http://connection.ebscohost.com/c/opinions/54904009/can-geoengineering-be-green

Abstract: In this article the author discusses the application of geoengineering for the restoration of the Earth's atmosphere. He cites the notion of authors Robert B. Jackson and James Salzman regarding the risk and uncertainties of geoengineering. Topics such as forest protection, industrial removal of carbon dioxide from the atmosphere, and climate change are presented.


Towards a standard methodology for greenhouse gas balances of bioenergy systems in comparison with fossil energy systems.

Author(s): Schlamadinger B, Apps M, Bohlin F, Gustavsson L, Jungmeier G, Marland GK, Savolainen PI

Published: September, 1999

Publisher: Biomass and Bioenergy

DOI: 10.1016/S0961-9534(97)10032-0

Tags: Bio-Energy

URL: http://www.sciencedirect.com/science/article/pii/S0961953497100320

Abstract: In this paper, which was prepared as part of IEA Bioenergy Task XV (“Greenhouse Gas Balances of Bioenergy Systems”), we outline a standard methodology for comparing the greenhouse gas balances of bioenergy systems with those of fossil energy systems. Emphasis is on a careful definition of system boundaries. The following issues are dealt with in detail: time interval analysed and changes of carbon stocks; reference energy systems; energy inputs required to produce, process and transport fuels; mass and energy losses along the entire fuel chain; energy embodied in facility infrastructure; distribution systems; cogeneration systems; by-products; waste wood and other biomass waste for energy; reference land use; and other environmental issues. For each of these areas recommendations are given on how analyses of greenhouse gas balances should be performed. In some cases we also point out alternative ways of doing the greenhouse gas accounting. Finally, the paper gives some recommendations on how bioenergy systems should be optimized from a greenhouse-gas-emissions point of view.


Geoengineering Climate (Book Chapter)

Author(s): Watts RG, Flannery B, Kheshgi HS, Marland GK, MacCracken MC

Published: July, 1997

Publisher: Engineering Response to Global Climate Change: Planning a Research and Development Agenda (CRC Press)

Tags: Overview

URL: http://www.crcpress.com/product/isbn/9781566702348;jsessionid=ucpnax4Qmu0wvYqiia7z9w**

Abstract: Discussing today’s hottest topics relating to climate change, including adapting to climate change and geo-engineering to mitigate the effects of change, this book takes on the tough questions of what to do and offers real solutions to the practical problems caused by radical changes in the earth’s climate. This new edition explores the latest concerns such as acidification of the ocean, energy efficiency, transportation, space solar power, and future and emerging possibilities. Each chapter concludes with discussion questions, calculations, and possible research topics.


Could we/should we engineer the Earth's climate?

Author(s): Marland GK

Published: July, 1996

Publisher: Climatic Change

DOI: 10.1007/BF00142575

Tags: Ethics, Overview

URL: http://www.springerlink.com/content/t871pj4647717333/

Abstract: Through the burning of fossil fuels, the clearing of forest land, and a range of other human activities, we are adding to the atmosphere large quantities of chemical species which have the potential to alter the Earth's energy balance. We are, albeit inadvertently and in poorly understood ways, engineering the global climate. Is it feasible that we could undertake global-scale, purposeful engineering of the global energy balance, or of global biogeochemical cycles, to counterbalance the ill effects of what we are now doing inadvertently? In our current discussions of how to confront global climate change we are evaluating controls on economic and social systems, should we also give consideration to controls on the geophysical system? Or, if controls are judged appropriate, what are the considerations in deciding whether to try to control, for example, coal consumption as opposed to the radiant energy balance of the earth? Could it be that counteracting the human impact on atmospheric chemistry is technologically easier, economically cheaper, and/or socially more acceptable than preventing it?


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