000			02652nab|a22003017a|4500
999			_c62394 _d62386
001			62394
003			MX-TxCIM
005			20211006074822.0
008			200725s2013||||xxu|||p|op||||00||0|eng|d
022			_a0013-936X
022			_a1520-5851 (Online)
024	8		_ahttps://doi.org/10.1021/es4025113
040			_aMX-TxCIM
041			_aeng
100	1		_915037 _aHeller, M.C.
245	1	0	_aToward a life cycle-based, diet-level framework for food environmental impact and nutritional quality assessment : _ba critical review
260			_aWashington, DC (USA) : _bAmerican Chemical Society, _c2013.
500			_aPeer review
520			_aSupplying adequate human nutrition within ecosystem carrying capacities is a key element in the global environmental sustainability challenge. Life cycle assessment (LCA) has been used effectively to evaluate the environmental impacts of food production value chains and to identify opportunities for targeted improvement strategies. Dietary choices and resulting consumption patterns are the drivers of production, however, and a consumption-oriented life cycle perspective is useful in understanding the environmental implications of diet choices. This review identifies 32 studies that use an LCA framework to evaluate the environmental impact of diets or meals. It highlights the state of the art, emerging methodological trends and current challenges and limitations to such diet-level LCA studies. A wide range of bases for analysis and comparison (i.e., functional units) have been employed in LCAs of foods and diet; we conceptually map appropriate functional unit choices to research aims and scope and argue for a need to move in the direction of a more sophisticated and comprehensive nutritional basis in order to link nutritional health and environmental objectives. Nutritional quality indices are reviewed as potential approaches, but refinement through ongoing collaborative research between environmental and nutritional sciences is necessary. Additional research needs include development of regionally specific life cycle inventory databases for food and agriculture and expansion of the scope of assessments beyond the current focus on greenhouse gas emissions.
546			_aText in English
650		7	_aEnvironmental impact _2AGROVOC _94197
650		7	_aNutritive value _gAGROVOC _2 _91193
650		7	_aFood production _2AGROVOC _91116
700	1		_915038 _aKeoleian, G.A.
700	1		_915039 _aWillett, W.C.
773	0		_gv. 47, no. 22, p. 12632–12647 _dWashington, DC (USA) : American Chemical Society, 2013. _x0013-936X _tEnvironmental Science & Technology
942			_cJA _n0 _2ddc