by Valentina Prado and Reinout Heijungs
The selection of an alternative based on the results of a comparative environmental assessment such as Life Cycle Assessment (LCA), Environmental Input-Output Analysis (EIOA) or Integrated Assessment Modelling (IAM) is challenging because most of the times there is no single best option. Most comparative cases contain trade-offs between environmental criteria, uncertainty in the performances and multiple diverse values from decision makers. To circumvent these challenges, a method from decision analysis, namely Stochastic Multi Attribute Analysis (SMAA), has been proposed instead. SMAA performs aggregation that is partially compensatory (hence, closer to a strong sustainability perspective), incorporates performance uncertainty in the assessment, is free from external normalization references and allows for uncertainties in decision maker preferences. This paper presents a thorough introduction of SMAA for environmental decision-support, provides the mathematical fundamentals and offers an Excel platform for easy implementation and access.
EarthShift Global had the honor to host a mini-Race4Good last week at the LCA XVIII conference in Fort Collins, CO last week. The event picked up on a challenge Lise Laurin presented at last year’s conference [link to award ceremony speech] to develop Cascading Non-Linear Solutions to today’s Cascading Non-Linear Problems. (Find a link to her opening remarks here)
Problems like Climate Change are considered Cascading Non-Linear problems. As the planet warms, the ice caps melt and reflect less sunlight back to space. Instead, the darker oceans absorb the heat, warming the planet even faster. In addition, methane, a gas with high global warming potential, is released from the tundra, further exacerbating the problem. The worse it gets, the worse it gets.
But there are Cascading Non-Linear Solutions to these problems....
Read More here...
Recent Blog Posts
EarthShift Global LLC
37 Route 236, Suite 112 • Kittery, ME 03904 USA
Call: +1 (207) 608-6228, Fax: +1 (207) 613-7437
— TheShift Sustainability News and Views masthead image was provided by Brooks Campbell (Reflections on Smith River, Wolfeboro NH)