Assistant Professor

Goretty Dias

519-888-4567 x38571

EV3 4249


Professor Goretty Dias has a background in natural sciences and engineering. Recently, her work has focused on sustainability and life cycle assessment (LCA) of dietary patterns, Canadian agriculture products, and bioenergy. Her interests lie in the use of LCA and other sustainability assessment tools to analyze various agricultural and biobased product systems in order to create more sustainable agriculture and food systems.

Research interests​

  • Life cycle sustainability assessment- development of methods and approaches
  • Industrial ecology approaches to sustainability
  • Sustainable food and biofuel/bioenergy production, nutritional security
  • Environmental footprinting of diets (e.g. North American, European, vegan, etc.) and foodshed analysis
  • Agricultural certification and food labeling


Ph.D. Atmospheric Science, University of Guelph
B.Sc. Physical Geography, University of Guelph

Current courses taught

  • Masters of Environment and Business ENBUS 622: Product Life Cycle Assessment and Management
  • Environment and Business ENBUS 402 (A&B): Environment and Business Project
  • Environment and Business ENBUS 307/SUSM 675: Industrial Ecology: Life Cycle Assessment and Management in Business

Relevant publications

  • Obnamia JA, Dias GM, MacLean HL, Saville BA. Comparison of U.S. Midwest corn stover ethanol greenhouse gas emissions from GREET and GHGenius. 2019. Applied Energy. 235: 591-601.
  • Krishna B. KC, Dias GM, Weersink A, Veeramani A, Swanton CJ, Fraser D, Steinke D, Lee E, Sargeant J, Farber J, Dunfield K, McCann K, Madhur A, Campbell M, Rooney N, Raine NE, Van Acker R, Hanner R, Pascoal S, Sharif S, Benton T, Wittman H, Fraser EDG. 2018. When too much isn’t enough: Does current food production meet global nutritional needs? PLOS ONE, October 23, 2018,
  • Ayer NW, Dias G. Supplying renewable energy for Canadian cement production: Life cycle assessment of bioenergy from forest harvest residues using mobile fast pyrolysis units (2018) Journal of Cleaner Production, 175, pp. 237-250. DOI: 10.1016/j.jclepro.2017.12.040
  • Dias GM, Ayer N, Kariyapperuma K, Thevathasan N, Gordon A, Sidders D, Johannesson G. 2017. Life Cycle Assessment of Thermal Energy Production from Short-Rotation Willow Biomass in Southern Ontario, Canada. Applied Energy. 24, 15 October 2017, 343-352
  • Veeramani A, Dias GM, Kirkpatrick S. 2017 Carbon footprint of dietary patterns in Ontario, Canada: A case study based on actual food consumption. Journal of Cleaner Production · June 2017. DOI: 10.1016/j.jclepro.2017.06.025
  • Roy P, Dias GM. 2017. Prospects for pyrolysis technologies in the bioenergy sector: A review. Renewable and Sustainable Energy Reviews 77:59-69 · September 2017. DOI:10.1016/j.rser.2017.03.136
  • Veeramani A, Dias G, Kirkpatrick S. 2016. A life cycle approach to modeling nutritionally balanced, climate-friendly and socially viable dietary patterns in Ontario, Canada. Refereed paper LCA Food 2016, Dublin, Ireland, October 18-21, 2016.
  • Veeramani A, Dias G, Kirkpatrick S. 2016. Carbon footprint of dietary choices in Ontario. Poster presentation at Cycle 2016, October 12-13, 2016. Montreal QC.
  • Bahadur KKC, Fraser EDG, Pascoal S, Dias G, Zundel T. 2016. Pathways leading to a more sustainable & healthy global food system. Solutions. 7(5):10-12.
  • Dias G, Ayer N, Khosla S, VanAcker R, Young SB, Whitney S, Hendricks P. 2016. Life cycle perspectives on the sustainability of Ontario greenhouse tomato production: Benchmarking and improvement opportunities. Journal of Cleaner Production,
  • Fraser E; A. Legwegoh; Krishna KC; M. CoDyre; G. Dias; S. Hazen; R. Johnson; R. Martin; L. Ohberg; S. Sethuratnam; L. Sneyd; J. Smithers; R. Van Acker; J. Vansteenkiste; H. Wittman; R. Yada; A. A. Legwegoh. Biotechnology or organic? Extensive or intensive? Global or local? A critical review of potential pathways to resolve the global food crisis. Accepted November 2015 in Trends in Food Science and Technology.
  • Young SB, Yuan Z, Dias G. 2014. Prospects for sustainability certification of metals. Metall. Res. & Techn. (formerly “Revue de Métallurgie”). Mar.,
  • Sanscartier D, Dias G, Deen W, Dadfar H, McDonald I, MacLean H. , Life Cycle GHG Emissions of Electricity Generation from Corn Cobs in Ontario, Canada. Accepted BioFPR February 2014.

  • Young SB, Zhe Y, Dias G. 2014. Prospects for sustainability certification of metals. Accepted February 2014. Metall. Res. Technol. DOI: 10.1051/metal/2014008

  • Jayasundara S, Wagner-Riddle C, Dias G, Kariyapperuma KA. 2013. Energy and Greenhouse Gas Intensity of Corn Production in Ontario: A Regional Assessment. Accepted to Canadian Journal of Soil Science, November 2013.

  • Sanscartier D, Deen W, Dias G, MacLean H, Dadfar H, McDonald I, Kludze H. 2013. Implications of Land Class and Environmental Factors on Life Cycle GHG Emissions of Miscanthus as a Bioenergy Feedstock, GCB Bioenergy, doi:10.1111/gcbb.12062.

  • Young S, Fonseca A, Dias G. 2010. Principles for responsible metal supply to electronics. Social Responsibility Journal. 6 (1), 1747-1117.

University of Waterloo

Profiles by type