Donna Jefferies
Unilever
4 Papers
11 Citations
Donna Jefferies is an academic researcher from Unilever. The author has contributed to research in topics: Global warming & Agriculture. The author has an hindex of 4, co-authored 4 publications.
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Papers
Approaches for Addressing Life Cycle Assessment Data Gaps for Bio‐based Products
Llorenç Milà i Canals,Adisa Azapagic,Gabor Doka,Donna Jefferies,Henry King,Christopher L. Mutel,Thomas Nemecek,Anne Roches,Sarah Sim,Heinz Stichnothe,Greg Thoma,Adrian G. Williams +11 more
TL;DR: There is an increasing need for life cycle data for bio‐based products, which becomes particularly evident with the recent drive for greenhouse gas reporting and carbon footprinting studies, and the challenges and consequences of using either proxy data sets or data extrapolation methods.
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Modular Extrapolation Approach for Crop LCA MEXALCA: Global Warming Potential of Different Crops and its Relationship to the Yield
Thomas Nemecek,Karin Weiler,Katharina Plassmann,Julian Schnetzer,Gérard Gaillard,Donna Jefferies,Tirma García–Suárez,Henry King,Llorenç Milà i Canals +8 more
- 01 Jan 2011
TL;DR: In this paper, the relationship between the yield and the environmental impacts is analyzed in order to test whether the yield alone can be used as an extrapolation criterion, and the results show that the global warming potential (GWP) per kg decreases with increasing yields for the means of the 27 studied crops.
8
Modular Extrapolation Approach for Crop LCA MEXALCA: Global Warming Potential of
Thomas Nemecek,Karin Weiler,Katharina Plassmann,Julian Schnetzer,Gérard Gaillard,Donna Jefferies,Henry King,Llorenç Milà,N. Brisson,B. Mary,D. Ripoche,Marie-Hélène Jeuffroy,Ruget F,Bernard Nicoullaud,Gate P,F. Devienne-Barret,Rodrigo Antonioletti,S. Recous,Xavier Tayot,Pierre Cellier,I. Theory +20 more
- 01 Jan 2011
TL;DR: In this article, the relationship between the yield and the environmental impacts is analyzed in order to test whether the yield alone can be used as an extrapolation criterion, and the results show that the global warming potential (GWP) per kg decreases with increasing yields for the means of the 27 studied crops.
7
Estimation of the variability in global warming potential of worldwide crop production using a modular extrapolation approach.
Thomas Nemecek,Karin Weiler,Katharina Plassmann,Julian Schnetzer,Gérard Gaillard,Donna Jefferies,Tirma García–Suárez,Henry King,Llorenç Milà i Canals +8 more
TL;DR: In this article, the variability in global warming potential of 27 crops using the modular extrapolation of agricultural life cycle assessment (MEXALCA) method, a modular, geographical extrapolation method for crop lifecycle assessment, was evaluated.