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Economics, Thermodynamics and Biorenewable Resources. Dr. Robert Anex Agricultural & Biosystems Engineering Iowa State University June 8, 2004 Workshop on the Economic and Environmental Impacts of Bio-based Production. Outline. Neoclassical economics Sustainability economics
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Economics, Thermodynamics and Biorenewable Resources Dr. Robert Anex Agricultural & Biosystems Engineering Iowa State University June 8, 2004 Workshop on the Economic and Environmental Impacts of Bio-based Production
Outline • Neoclassical economics • Sustainability economics • A brief history of biobased economy • Sustainability and bio-based production • Research directions • Conclusions
Neoclassical Economics 101 • Utility maximization versus preference satisfaction • Heuristics and biases • Potential Pareto Optimality and economic efficiency • Ethical conflicts “Do you have anything better?” - Robert Reed
Economic Justification for Regulation Market Failures • Non-market goods • Environmental services • Basic Research • National Security • Sustainability (one of three legs) • Long-term impacts • Technical substitution potential to offset social, environmental & resource depletion • ‘Weak’ versus ‘Strong’ sustainability
Rationales for Limited Substitution • Finite environmental sink capacity • Bounded rationality • Thermodynamic limits to production • minimum energy and material requirements • entropic dissipation • shadow price of dissipation? • finite renewable energy potential
Biobased Economies of the Past Mesopotamia Carthage Rome
Breaking the Cycle Decoupling Primary Industrial Productivity from Biomass Production
1868 Back to the Past? “…the use of vegetable oils for engine fuels may seem insignificant today, but such oils may become, in the course of time, as important as petroleum and the coal- tar products of the present time.” - Rudolf Diesel - Kerosene first distilled from oil Paris World’s Fair - diesel engine run on peanut oil 1853 1898 1912 Standard Oil monopoly broken First oil company formed
1926 1950 1935 1977 1980s Back to the Past? “ … build a vehicle, affordable to the working family, powered by fuel that would boost the rural farm economy.” - Henry Ford - First U.S. Energy Crisis invigorates bioenergy development efforts Declaration of Dependence Upon the Soil
Biomass Growth Agriculture Silviculture Aquaculture Processing - thermal - chemical - physical - biological End-of-Life - combustion - composting - landfill Harvest, pre-process, transport Distribution & Sales Use Biobased Product Life Cycle A Biobased Product System
Agricultural Sustainability Some factors to think about: • Soil availability and quality • Input efficiency (water, nutrients, …) • Photosynthetic efficiency • Harvest index • Intensity of management • Postharvest storage, processing, and distribution losses • Societal transformations
Life Cycle Assessment Procedure LCA is a techniquefor assessing the environmental aspects and potential impacts associated with a product. • Direct Applications • Product development and improvement • Strategic planning • Public policy making • Marketing From ISO14040-1997, Environmental management-- Life cycle assessment-- Principles and framework
Typical Output: Climate Change Potential Impact of climate change on agricultural productivity?
Some Measures of Strong Sustainability • Energy return on investment • Ecological footprint • net primary production • Sustainability gaps • critical stocks • limiting environmental factors (e.g., CO2)
We know more about the movement of the celestial bodies than about the soil underfoot. LEONARDO DA VINCI What We Don’t Yet Know
What We Don’t Yet Know (partial list) • Soil Fertility • Water Quality • Climate Change Impacts • Resource Sufficiency • Economic Impacts • Social Impacts They’re makin’ more people every day but they ain’t makin’ any more dirt. – Will Rogers -
Biotechnology Debate isValue-Driven by Stakeholders • Impact Assessment is a value-driven process. • Risk has uniquely local & social characteristics • Risks are not additive across endpoints • LCA should be an analytic-deliberative process and serve as a vehicle for building consensus
Basis for Regulation (e.g., Promotion) • Possible benefits: • Environmental • Economic • Social • Bioproduction will have long-term (possibly irreversible) impacts that are poorly understood: • Soil fertility • Climate change • Agricultural capacity
Conclusions • Biobased production on a limited scale may help reach certain environmental, social and political objectives but will have little impact on sustainability • There is still much we do not know about the implications of a transition to large-scale bioproduction and new tools are needed • We must seek answers before making large, irreversible investments that lock-in technology choices (a unique opportunity)
Journal of Industrial Ecology Special Issue on Biobased Products Available from MIT Press Available free via the internet at: http://mitpress.mit.edu/jie/bio-based