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A label for more transparency

01.09.2014 - (idw) Fraunhofer-Gesellschaft

Take oppressive heat, the acrid smell of chemicals and air that is heavy with dust, and throw in a sixteen- to eighteen-hour work day without a break. And if you think there are any occupational physicians, health inspectors or unions on hand to come to workers aid, think again. For farmers, whats left of the proceeds from harvesting what they have produced through sheer physical effort is barely enough for them to feed themselves and their families. Working conditions in low-wage countries such as China, Bangladesh, India or Cambodia tend to be dreadful. Press reports and TV documentaries covering the systematic exploitation of workers in these and many other countries, as well as on the fates of individuals, are leaving consumers with more than just a bad taste in their mouths. This media presence is having the desired effect: more and more consumers in higher-wage countries are choosing to pay significantly higher prices for fair trade products. The Berlin-based Forum Fairer Handel reported that in Germany alone, sales in this market rose by 21 percent to 784 million euros from 2012 to 2013. But even though shoppers are becoming ever more discerning, we as consumers are still without a reliable, comprehensible appraisal system with succinct labeling. In the opaque world of middlemen, even retailers dont always know the full story of where their products come from, who produced them and under what conditions.

Its at this point that the term sustainability enters the discussion sustainability in terms of products and how they are developed. German speakers first encountered this term in the context of forestry and watched as it was adopted by advertisers and the public at large. For many companies, sustainability has come to be nothing more than a strand of marketing strategy. But in reality, sustainability embodies a wider concept that combines commercial success with social, ecological and economic considerations. Despite the variety of definitions of sustainability that get bandied around, they all have one thing in common. Its all about sustaining a system or particular features of a system be it the production capacity of a given social system or of a life-sustaining ecological system. The idea is always to preserve something for the benefit of future generations, explains Dr. Bernd Klauer from the Helmholz Centre for Environmental Research UFZ in his 1999 book What is sustainability? (Was ist Nachaltigkeit?).

It is against this backdrop that Matthias Fischer and the rest of the Life Cycle Engineering department at the Fraunhofer Institute for Building Physics IBP have been working on methods of assessing sustainability for the past 25 years. The researchers have made it their mission to develop reliable, universally usable assessment systems. Life Cycle Assessments (LCAs) and Life Cycle Costings (LCCs) have long since established themselves as ways of examining products from an ecological and economic perspective while also taking the value chain into account, says Sarah Schneider from the Life Cycle Engineering department. These internationally standardized methods are used in research as well as in industry. In accordance with ISOs 14040 and 14044, an LCA is an internationally standardized method of outlining the environmental impact a product or product system is likely to have over its entire life cycle. This involves getting a complete picture of emissions and resources relating to a products value chain and calculating the potential environmental impact according to various categories such as the products global-warming potential. An LCC, meanwhile, considers payment flows throughout the life of a product system or a service and discounts them in line with when they occur. In the building sector, Type III Environmental Product Declarations (EPDs ) according to ISO 14025 are used to compile information about a building products life cycle and LCA values along with any test results, for example to allow a detailed analysis of interior emissions from volatile organic compounds, or VOCs. LCA and LCC methods make it possible to quantify sustainability.

The Foodprint sustainability in what we eat
Discerning shoppers are paying increasing attention to the quality and origin of the foods they are buying. There is a wealth of eco-certification labels out there to help to orient consumers from Biokreis, Bioland, Naturland and Naturkind in and around Germany, to USDA Organic in the USA and Demeter worldwide. Supermarket chains are also responding to growing demand for fair-trade and organic produce by developing their own labels. But consumer confidence is shaken again and again by one food scandal or another. What is more, environmental organizations are constantly uncovering instances of greenwashing, where a company has misused a label to promote itself as eco-friendly. Customers meanwhile are left scratching their heads and asking themselves whom they can trust.

Back in the Life Cycle Engineering department, researchers are working on establishing a database of environmentally relevant criteria for foods, which they hope will enable supermarkets and their suppliers to use scientific calculations when deciding what to sell. What is more, customers could use the databases impartial information to help them make informed purchasing decisions. This calls for the findings of food-related LCAs to be processed and presented in an understandable, no-nonsense and uniform way.

The first step is to use LCA methods to compile datasets for a great many of the most important foods. These datasets highlight the ecological effects of each food for instance emissions including its full upstream chain. This ensures that all stakeholders are considered; from farmers, logistics and processing to packaging, retailers and customers. Where necessary, the researchers supplement this purely environmental information with additional qualitative assessment characteristics or socioeconomic criteria. Such information can be used to generate a helpful basis for supermarkets and shoppers to make decisions and understand how the upstream chain, supermarkets and consumers are linked.

In pursuit of these goals, the researchers carried out a survey of existing national as well as international databases and apps. Their findings indicated that not only do databases and apps already exist for certain countries, but they are also a hot research topic. But since data collection and processing across the various databases is inhomogeneous and inconsistent, the data cannot be consolidated without further effort. Building on these findings, the researchers conducted some market analysis by interviewing national and international stakeholders. They did discover that there is a strong desire to improve on the current state of non-transparent, inconsistent and insufficient data collection. However, the only way to really convince the various stakeholders that an assessment is worthwhile is to create a nuanced display of LCA data processed according to audience and demand.

Establishing a stakeholder interface and a database containing LCA-relevant information are the next steps after this market analysis, says Christian Peter Brandstetter from the Materials and Product Systems group. Ultimately, what would then exist would be a database that catalogs the environmental impact of various foods, offering supermarkets and their customers a roadmap for purchasing decisions. Then, in much the same way that EPD s are used in the building sector, food manufacturers could be encouraged to reveal the impact their products have on the environment, which would in turn increase the store of specific data. This would also mean consumers could be given access to information on the environmental impact of what they eat, perhaps in the form of an app naturally an interactive one geared to consumers which would provide supermarket shoppers with all the relevant information about the product

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