Abstract
This paper presents an assessment of atmospheric emissions of greenhouse gases (GHGs) and associated land use for the production of milk, beef, grain and potatoes. It compares the less intensive (i.e. organic) farming system with the more intensive (i.e. conventional) food production system. The emission sources, trade-offs with land and potential for reduction of GHG emissions were analysed. The sources for farm accounts data on inputs and outputs are representative farm types constructed from data from the Norwegian Farm Accountancy Data Network. The analysis was carried out with life cycle assessment, including processes from manufacturing of inputs to farms, and on-farm production up to the farm gate. The results show that it is worthwhile considering a greater proportion of food energy from vegetable rather than from animal products, analysing grass-based meat production in more detail and reducing mineral fertilizer use.
Published Version
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