Interessante lavoro sul Grana Padano, presentato da Guerci et al., al congresso LCAFood di Dublino
Carbon Footprint of Grana Padano PDO cheese in a full life cycle perspective
The aim of the present study was to assess the carbon footprint of Grana Padano PDO (Protected Designation of Origin) Cheese with a from cradle to grave approach. The study was submitted for an external critical review in order to verify the compliance with the ISO/TS 14067 (ISO, 2013).
The study involved two dairies (A and B) with 8 and 16 farms respectively. The functional unit (FU) was 1 kg of cheese aged for 12 months. Farm data were collected through farmer interviews, while the other data (from milk collection to end of life) were provided mainly by the dairies. On-farm GHG emissions were estimated following the IPCC Guidelines (IPCC, 2006a, 2006b), the off-farm and the total GHG emissions were assessed using the SimaPro 8.0 software (PRé Consultants, 2015) by the 100-year GWP (IPCC, 2013). The allocation between cheese and by-products (i.e. cream and whey) was done as proposed by the PCR: Yoghurt, Butter and Cheese (International EPD® System, 2013).
The results obtained were 16.02 and 15.84 kg CO2-eq. kg-1 FU for A and B respectively. The main contributor to the impact was the production of raw milk (75.3% and 73.9% respectively). The other process (from the raw milk collection through the product processing to the end of life) had a smaller impact. The use phase (cooled storage and product waste) played the main role in the GHG emissions of the post-farm steps.
Through the review of an accredited and independent body the two dairies obtained the ISO certification.
Sebbene troppo spesso i sottoprodotti siano visti più come un costo da gestire dalla loro valorizzazione è possibile ricavare nuovi prodotti con un alto valore aggiunto. Ne sono un esempio Cartamela e Pellemela ovvero carta e pelle/similpelle prodotti con gli scarti di lavorazione delle mele.
Per maggiori dettagli riguardo alla produzione del Pellemela:
L’utilizzo dei sottoprodotti della mela permette di sostituire la cellulosa altrimenti appositamente prodotta.
L’impatto umano sul riscaldamento globale legato all’industrializzazione è cominciato già a partire dal 1830, circa mezzo secolo prima dell’inizio di rilevazioni comprensive con strumenti. Lo rivela un’ampia ricerca internazionale guidata da scienziati australiani, e basata su evidenze naturali di variazioni climatiche negli oceani e nei continenti, comprese quelle individuate nei coralli, nelle ‘carote’ di ghiaccio, negli anelli degli alberi e nei cambiamenti chimici nelle stalagmiti nelle grotte.
Clima: impatto umano
articolo su Nature:
Early onset of industrial-era warming across the oceans and continents
Interessante esposizione breve dal sito EPA degli USA delle principali implicazioni dell’impatto dei cambiamenti climatici sull’agricoltura e quindi sulla produzione di alimenti vegetali ed animali.
EPA USA – Climate Impacts on Agriculture and Food Supply
The grain legumes pea and faba beans are among the relevant alternatives to imported soybeans for livestock feed for growing in the European agricultural systems, but what is the climate impact of an increased European production of grain legumes such as pea and faba bean? In order to estimate the overall climate impact of producing more grain legumes in Europe, we applied Life Cycle Assessment (LCA). The results showed that carbon footprints per kg protein of pea and faba bean in Europe did not vary much for different regions in Europe. Based on FAO statistics and an expert survey (Reckling et al., 2014), it was assumed that an increased European production of grain legumes will decrease the import of soybean cake and decrease the export of wheat from Europe. Taken that into account, results showed a small climate benefit of producing more grain legumes in Europe compared to importing soybeans to Europe.
Keywords: grain legumes, LCA, carbon footprint, soybeans, pea, faba bean