Identifying the environmental footprint by source of supply chains for effective policy making: the case of Spanish households consumption
2019
Household consumption has been identified to have an essential role in influencing ultimately the environmental pressures generated by human activities. This study assesses the indirect environmental footprint of the Spanish households applying a combination of consumer expenditure surveys with environmentally extended multi-regional input-output analysis. A total of fourteen environmental impact categories are studied from 2006 to 2015. All the impact categories present a similar trend, particularly affected by the economic crisis. The impacts decreased from 2008 to 2013 and finally slightly started rising again from 2014 to 2015. Results show that the dominant categories influencing the indirect environmental footprint in 2015 are (1) food and beverages, (2) housing, and (3) furnishings. From the intensity perspective, housing, transport, and food and beverages appear to be the most intensive consumption clusters in the Spanish household indirect environmental footprint. In relation to the indirect water impacts embodied in the Spanish households' imports, the largest amount is from European countries and the highest virtual water (59%) corresponds to food and agriculture, in particular from wheat, fruit, vegetables, and dairy products. The findings obtained in relation to the sources generating indirect impacts from household consumption could aid the implementation of future mitigation policies.
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