Is eating vegetables out of season bad for the climate?
Besvaret 1. november 2026
It depends mostly on how the vegetables are grown and shipped, not on the season itself. The UN climate panel IPCC writes that field-grown vegetables can have much lower emissions than local vegetables from heated greenhouses, and that importing out-of-season produce can save emissions compared with growing it locally. Tomatoes from Dutch greenhouses, for example, came to 2.05 kg CO2e per kg in a Swedish shop, against 0.51 kg for field-grown Spanish tomatoes including transport, according to a review from Aarhus University. Air freight pushes it up: DTU Fødevareinstituttet writes that fruit and vegetables shipped by air are higher. Storing produce to stretch the season costs energy and causes waste; for apples, losses of 5-40 percent over 4-10 months have been found. Overall, the gain from eating seasonally is limited, because vegetables make up only a small part of food emissions, DTU writes, citing Swedish researchers.
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- Rapport fra FN's klimapanel IPCC, 2019Samler mange studier · RapportFood Security (Chapter 5 of Climate Change and Land: an IPCC Special Report)
- Rapport fra Aarhus Universitet om 62 fødevarer, 2022Samler mange studier · Rapport · 62 fødevarer i én af databaserne i tabellenVidensyntese om livscyklusvurderinger og klimaeffektivitet i landbrugssektoren (DCA rapport nr. 200)
- Rapport fra DTU Fødevareinstituttet, 2020Samler mange studier · RapportRåd om bæredygtig sund kost – fagligt grundlag for et supplement til De officielle Kostråd
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