All Stories

  1. Adaptive two-stage stochastic energy infrastructure expansion planning

    Article • International Journal of Electrical Power & Energy Systems, April 2026, Elsevier

    Valerie M. Thomas

  2. The push and pull of policy on life cycle assessment of low-carbon systems

    Article • RSC Sustainability, January 2026, Royal Society of Chemistry

    Valerie M. Thomas

  3. US transition from coal to natural gas has significantly reduced emissions

    Article • November 2025, The Conversation

    Valerie M. Thomas

  4. Is local food better? It depends

    Article • The International Journal of Life Cycle Assessment, May 2025, Springer Science + Business Media

    Valerie M. Thomas

  5. What motivates water recycling?

    Article • Resources Conservation and Recycling, April 2025, Elsevier

    Valerie M. Thomas

  6. How to include birds, insects, mammals, plants in our economic models

    Article • Ecological Modelling, November 2024, Elsevier

    Valerie M. Thomas

  7. What is the Benefit of Residential Electricity?

    Article • October 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Valerie M. Thomas

  8. Integrating direct air capture with algal biofuel production to reduce cost, energy, and GHG emissions

    Article • Journal of CO2 Utilization, August 2024, Elsevier

    Valerie M. Thomas

  9. Cooling Commercial Buildings: Water-Energy Nexus

    Article • Sustainable Energy Technologies and Assessments, July 2024, Elsevier

    Valerie M. Thomas

  10. How can we reduce protect biodiversity while reducing greenhouse gas emissions?

    Article • Environmental Science & Technology, May 2024, American Chemical Society (ACS)

    Valerie M. Thomas

  11. How to plan for electricity when the future is uncertain

    Article • International Journal of Electrical Power & Energy Systems, January 2024, Elsevier

    Valerie M. Thomas

  12. Global lead exposure and the removal of lead in petrol

    Article • Environmental Health, December 2022, Springer Science + Business Media

    Valerie M. Thomas

  13. Understanding Supply Chains for New Technologies

    Article • Applied Sciences, July 2022, MDPI AG

    Valerie M. Thomas

  14. The role of women in electricity adoption and use

    Article • Energy Research & Social Science, July 2022, Elsevier

    Valerie M. Thomas

  15. Greenhouse Gas Impact of Algal Bio-Crude Production for a Range of CO2 Supply Scenarios

    Article • Applied Sciences, December 2021, MDPI AG

    Valerie M. Thomas

  16. Correction to “Recovery of Critical Metals from Aqueous Sources”

    Article • ACS Sustainable Chemistry & Engineering, October 2021, American Chemical Society (ACS)

    Dr Michael Carbajales-Dale, Valerie M. Thomas

  17. Recovery of Critical Metals from Aqueous Sources

    Article • ACS Sustainable Chemistry & Engineering, August 2021, American Chemical Society (ACS)

    Dr Michael Carbajales-Dale, Valerie M. Thomas

  18. Combined Heat and Power May Conflict with Decarbonization Goals—Air Emissions of Natural Gas Combined Cycle Power versus Combined Heat and Power Systems for Commercial Buildings

    Article • Environmental Science & Technology, July 2021, American Chemical Society (ACS)

    Valerie M. Thomas

  19. The impact of development priorities on power system expansion planning in sub-Saharan Africa

    Article • Energy Systems, April 2021, Springer Science + Business Media

    Valerie M. Thomas

  20. The Mining and Technology Industries as Catalysts for Sustainable Energy Development

    Article • Sustainability, December 2020, MDPI AG

    Valerie M. Thomas

  21. Lifecycle greenhouse gas emissions for an ethanol production process based on genetically modified cyanobacteria: CO2 sourcing options

    Article • Biofuels Bioproducts and Biorefining, July 2020, Wiley

    Valerie M. Thomas

  22. Similarities in Recalcitrant Structures of Industrial Non‐Kraft and Kraft Lignin

    Article • ChemSusChem, July 2020, Wiley

    Valerie M. Thomas

  23. Unpacking Ecological Stress from Economic Activities for Sustainability and Resource Optimization in Sub-Saharan Africa

    Article • Sustainability, April 2020, MDPI AG

    Valerie M. Thomas

  24. Electricity Rates: Did You Know You Can Choose to Have Lower Rates at Night?

    Article • Production and Operations Management, November 2019, Wiley

    Valerie M. Thomas

  25. Information Technology Can Assist Developing Countries to Reduce Greenhouse Gas Emissions

    Article • Administrative Sciences, June 2019, MDPI AG

    Valerie M. Thomas

  26. Biomass Power Plants Economic and Environmental Impacts

    Article • Utilities Policy, June 2019, Elsevier

    Valerie M. Thomas

  27. How to select wind farm locations

    Article • Wind Energy, March 2019, Wiley

    Valerie M. Thomas

  28. Manufacturing Solar Ovens for East Africa

    Article • Socio-Economic Planning Sciences, March 2019, Elsevier

    Valerie M. Thomas

  29. Infrastructure ecology: an evolving paradigm for sustainable urban development

    Article • Journal of Cleaner Production, October 2017, Elsevier

    Valerie M. Thomas

  30. Parametric modeling approach for economic and environmental life cycle assessment of medium-duty truck electrification

    Article • Journal of Cleaner Production, January 2017, Elsevier

    Valerie M. Thomas

  31. Water, Air Emissions, and Cost Impacts of Air-Cooled Microturbines for Combined Cooling, Heating, and Power Systems: A Case Study in the Atlanta Region

    Article • Engineering, December 2016, Elsevier

    Valerie M. Thomas

  32. Introduction to a special issue of the journal Engineering Economics.

    Article • The Engineering Economist, July 2016, Taylor & Francis

    Valerie M. Thomas

  33. Can developing countries leapfrog the centralized electrification paradigm?

    Article • Energy for Sustainable Development, April 2016, Elsevier

    Valerie M. Thomas

  34. Reducing the volatility in a market for carbon dioxide emissions permits

    Article • Energy Economics, January 2016, Elsevier

    Valerie M. Thomas

  35. Inefficiencies in water consumption

    Article • Sustainable Water Resources Management, October 2015, Springer Science + Business Media

    Valerie M. Thomas

  36. Reducing health impacts of electric power plants

    Article • Proceedings of the National Academy of Sciences, August 2015, Proceedings of the National Academy of Sciences

    Valerie M. Thomas

  37. Introduction to material and energy flow analysis, engineering economics, and life cycle assessment

    Article • January 2015, American Institute of Physics

    Valerie M. Thomas

  38. Biofuel Lifecycle Energy and Environmental Impacts: The Challenges of Co-product Allocation

    Article • January 2015, Springer Science + Business Media

    Valerie M. Thomas

  39. Adaptive stochastic integrated assessment modeling of optimal greenhouse gas emission reductions

    Article • Climatic Change, December 2014, Springer Science + Business Media

    Valerie M. Thomas

  40. How to build out new infrastructure for algal biofuels

    Article • Computers & Chemical Engineering, December 2014, Elsevier

    Valerie M. Thomas

  41. Capture CO2. Grow Algae. Make Algae into Fuel.

    Article • Biofuels Bioproducts and Biorefining, July 2014, Wiley

    Valerie M. Thomas

  42. Utility-maximizing financial contracts for distributed rural electrification

    Article • Energy, May 2014, Elsevier

    Valerie M. Thomas

  43. Biomass feedstock contracts: Role of land quality and yield variability in near term feasibility

    Article • Energy Economics, March 2014, Elsevier

    Valerie M. Thomas

  44. Building an electricity system to withstand set-backs in developing countries.

    Article • Energy Systems, December 2013, Springer Science + Business Media

    Valerie M. Thomas

  45. Special Issue Call for Papers: “Engineering Economics and Sustainable Systems”

    Article • The Engineering Economist, October 2013, Taylor & Francis

    Valerie M. Thomas

  46. Electric Vehicles Make It Easier and Cheaper to Have Lots of Wind and Solar

    Article • Environmental Science & Technology, August 2013, American Chemical Society (ACS)

    Valerie M. Thomas

  47. In city traffic, electric trucks are better than diesel trucks

    Article • Environmental Science & Technology, July 2013, American Chemical Society (ACS)

    Valerie M. Thomas

  48. Life cycle inventory of electricity cogeneration from bagasse in the South African sugar industry

    Article • Journal of Cleaner Production, January 2013, Elsevier

    Valerie M. Thomas

  49. A mixed-integer optimization model for electricity infrastructure development

    Article • Energy Systems, August 2012, Springer Science + Business Media

    Valerie M. Thomas

  50. Is Leasing Greener Than Selling?

    Article • Management Science, March 2012, INFORMS

    Valerie M. Thomas, Dr L. Beril Toktay

  51. An electricity generation planning model incorporating demand response

    Article • Energy Policy, March 2012, Elsevier

    Valerie M. Thomas

  52. Least-cost network evaluation of centralized and decentralized contributions to global electrification

    Article • Energy Policy, February 2012, Elsevier

    Valerie M. Thomas

  53. Environmental Issues and Management Strategies for Waste Electronic and Electrical Equipment

    Article • Journal of the Air & Waste Management Association, September 2011, Taylor & Francis

    Valerie M. Thomas

  54. Increasing the likelihood of large-scale grid-enabled vehicle (GEV) penetration through appropriate design choices

    Article • September 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Valerie M. Thomas

  55. Cars are buildings: Building-like energy use in automobiles

    Article • Transportation Research Part D Transport and Environment, June 2011, Elsevier

    Valerie M. Thomas

  56. Environmental Issues and Management Strategies for Waste Electronic and Electrical Equipment

    Article • Journal of the Air & Waste Management Association, June 2011, Taylor & Francis

    Valerie M. Thomas

  57. Erratum to “State-scale evaluation of renewable electricity policy: The role of renewable electricity credits and carbon taxes” [Energy Policy 39 (2) (2010) 950–960]

    Article • Energy Policy, April 2011, Elsevier

    Valerie M. Thomas

  58. State-scale evaluation of renewable electricity policy: The role of renewable electricity credits and carbon taxes

    Article • Energy Policy, February 2011, Elsevier

    Valerie M. Thomas

  59. Efficient Use of Materials and Energy

    Article • January 2011, Wiley

    Valerie M. Thomas

  60. Life Cycle Energy and Greenhouse Gas Emissions for an Ethanol Production Process Based on Blue-Green Algae

    Article • Environmental Science & Technology, November 2010, American Chemical Society (ACS)

    Valerie M. Thomas

  61. An alternative mechanism for carbon emission permit price volatility mitigation

    Article • September 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Valerie M. Thomas

  62. Estimates of the cost of new electricity generation in the South

    Article • September 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Valerie M. Thomas

  63. Lowest cost path to meeting electricity demand at the state level: Implications of carbon cap-and-trade

    Article • September 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Valerie M. Thomas

  64. The environmental potential of reuse: an application to used books

    Article • Sustainability Science, August 2010, Springer Science + Business Media

    Valerie M. Thomas

  65. LCA of the South African sugar industry

    Article • Journal of Environmental Planning and Management, July 2010, Taylor & Francis

    Valerie M. Thomas

  66. Gigaton Problems Need Gigaton Solutions 1

    Article • Environmental Science & Technology, June 2010, American Chemical Society (ACS)

    Valerie M. Thomas

  67. A MARKAL model of state electricity generation

    Article • May 2010, Institute of Electrical & Electronics Engineers (IEEE)

    Valerie M. Thomas

  68. Relation of biofuel to bioelectricity and agriculture: Food security, fuel security, and reducing greenhouse emissions

    Article • Chemical Engineering Research and Design, September 2009, Elsevier

    Valerie M. Thomas

  69. A universal code for environmental management of products

    Article • Resources Conservation and Recycling, May 2009, Elsevier

    Valerie M. Thomas

  70. Biomass Forwards and Futures Market to Support Bioenergy Development

    Article • November 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Valerie M. Thomas

  71. Environmental implications of RFID

    Article • May 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Valerie M. Thomas

  72. Opportunity for landfill gas-to-energy projects in the U.S.

    Article • May 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Valerie M. Thomas

  73. Toward Trash That Thinks: Product Tags for Environmental Management

    Article • Journal of Industrial Ecology, February 2008, Wiley

    Valerie M. Thomas

  74. Relation of chlorine, copper and sulphur to dioxin emission factors

    Article • Journal of Hazardous Materials, February 2008, Elsevier

    Valerie M. Thomas

  75. 2008 IEEE international symposium on electronics and the environment May 19–21, 2008, San Francisco, CA

    Article • January 2008, Institute of Electrical & Electronics Engineers (IEEE)

    Valerie M. Thomas

  76. A Universal Code for Lifecycle Management of Products

    Article • May 2007, Institute of Electrical & Electronics Engineers (IEEE)

    Valerie M. Thomas

  77. Systematic Approach to Evaluating Trade-Offs among Fuel Options: The Lessons of MTBE

    Article • Annals of the New York Academy of Sciences, September 2006, Wiley

    Valerie M. Thomas

  78. Towards intelligent recycling: a proposal to link bar codes to recycling information

    Article • Resources Conservation and Recycling, April 2004, Elsevier

    Valerie M. Thomas

  79. Product Self-Management:  Evolution in Recycling and Reuse

    Article • Environmental Science & Technology, December 2003, American Chemical Society (ACS)

    Valerie M. Thomas

  80. Research Issues in Sustainable Consumption:  Toward an Analytical Framework for Materials and the Environment

    Article • Environmental Science & Technology, December 2003, American Chemical Society (ACS)

    Valerie M. Thomas

  81. Theoretical Calculation of Product Contents:  Battery and Cathode Ray Tube Examples

    Article • Environmental Science & Technology, May 2003, American Chemical Society (ACS)

    Valerie M. Thomas

  82. Demand and Dematerialization Impacts of Second-Hand Markets.

    Article • Journal of Industrial Ecology, March 2003, Wiley

    Valerie M. Thomas

  83. Industrial Ecology: Policy Potential and Research Needs

    Article • Environmental Engineering Science, January 2003, Mary Ann Liebert Inc

    Reid Lifset, Valerie M. Thomas

  84. No Evidence of Dioxin Cancer Threshold

    Article • Environmental Health Perspectives, November 2002, Environmental Health Perspectives

    Valerie M. Thomas

  85. Ethanol as a lead replacement: phasing out leaded gasoline in Africa

    Article • Energy Policy, November 2001, Elsevier

    Valerie M. Thomas

  86. Assessing Elemental Mercury Vapor Exposure from Cultural and Religious Practices

    Article • Environmental Health Perspectives, August 2001, Environmental Health Perspectives

    Valerie M. Thomas

  87. Assessing Elemental Mercury Vapor Exposure from Cultural and Religious Practices

    Article • Environmental Health Perspectives, August 2001, JSTOR

    Valerie M. Thomas

  88. Soviet and Post-Soviet Environmental Management: Lessons from a Case Study on Lead Pollution

    Article • AMBIO, March 2001, Royal Swedish Academy of Sciences

    Valerie M. Thomas

  89. Soviet and Post-Soviet Environmental Management: Lessons from a Case Study on Lead Pollution

    Article • AMBIO, January 2001, American Bryological and Lichenological Society

    Valerie M. Thomas

  90. Response to Comments on “Effects of Reducing Lead in Gasoline:  An Analysis of the International Experience”

    Article • Environmental Science & Technology, October 2000, American Chemical Society (ACS)

    Valerie M. Thomas

  91. Comments on “Effects of Reducing Lead in Gasoline:  An Analysis of the International Experience”

    Article • Environmental Science & Technology, October 2000, American Chemical Society (ACS)

    Valerie M. Thomas

  92. Effects of Reducing Lead in Gasoline:  An Analysis of the International Experience

    Article • Environmental Science & Technology, October 1999, American Chemical Society (ACS)

    Valerie M. Thomas

  93. The industrial ecology of lead and electric vehicles

    Article • January 1998, Springer Science + Business Media

    Valerie M. Thomas

  94. The Industrial Ecology of Lead and Electric Vehicles

    Article • Journal of Industrial Ecology, December 1997, Wiley

    Valerie M. Thomas

  95. Industrial Ecology: Towards Closing the Materials Cycle

    Article • Journal of Industrial Ecology, March 1997, Wiley

    Valerie M. Thomas

  96. Rejoinder to Lave, Hendrickson, and McMichael

    Article • Journal of Industrial Ecology, March 1997, Wiley

    Valerie M. Thomas

  97. Book reviews

    Article • Society & Natural Resources, July 1996, Taylor & Francis

    Valerie M. Thomas

  98. Peer Reviewed: The U.S. Dioxin Inventory: Are There Missing Sources?

    Article • Environmental Science & Technology, January 1996, American Chemical Society (ACS)

    Valerie M. Thomas

  99. Pilot study of sources of lead exposure in Moscow, Russia

    Article • Environmental Geochemistry and Health, December 1995, Springer Science + Business Media

    Valerie M. Thomas

  100. An estimation of dioxin emissions in the United States

    Article • Toxicological and Environmental Chemistry, October 1995, Taylor & Francis

    Valerie M. Thomas

  101. Anthropogenic Dioxin: A Reply to R. A. Carpenter

    Article • Ecological Applications, May 1995, Wiley

    Valerie M. Thomas

  102. Verification of Sea-Launched Cruise Missiles

    Article • January 1989, Springer Science + Business Media

    Valerie M. Thomas

  103. Verification of limits on long‐range nuclear SLCMs

    Article • Science & Global Security, January 1989, Taylor & Francis

    Valerie M. Thomas

  104. Sensitivity analysis of oscillating reactions. 1. The period of the Oregonator

    Article • The Journal of Physical Chemistry B, May 1981, American Chemical Society (ACS)

    Valerie M. Thomas

  105. Carbon Emission Permit Price Volatility Reduction via Financial Options

    Article • SSRN Electronic Journal, Social Science Electronic Publishing

    Valerie M. Thomas

  106. Soil as a Vulnerable Environmental System

    Article • Cambridge University Press

    Valerie M. Thomas

  107. The Industrial Ecology Agenda

    Article • Cambridge University Press

    Valerie M. Thomas

  108. Emissions and Exposure to Metals: Cadmium and Lead

    Article • Cambridge University Press

    Valerie M. Thomas

  109. Industrial Ecology in the Manufacturing of Consumer Products

    Article • Cambridge University Press

    Valerie M. Thomas