Claim · model-written summary
Waste heat for greenhouse heating in Switzerland reduces the carbon footprint of tomatoes to less than one-third of that under natural-gas heating (0.6 CO2-eq/kg).
- Taxon
- tomatoes
Solanum lycopersicume1 - Treatment
- waste heat for greenhouse heatinge1
- Outcome
- carbon footprinte1
- Direction
- reducee1
- Value
- 0.6 CO 2 -eq/kge1
- Qualifier
- less than one-thirde1
- Comparator
- local natural-gas-based heating systemse1
- Setting
- Switzerlande1
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor role
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“using waste heat for greenhouse heating in Switzerland can reduce the carbon footprint to less than one-third (e.g., 0.6 CO 2 -eq/kg for tomatoes) compared to local natural-gas-based heating systems”
Title
Vanessa Burg; Hamidreza Solgi; Farzaneh Rezaei; et al. Resources Environment and Sustainability 2025. doi:10.1016/j.resenv.2025.100209
Other claims from this paper (6)
- Association Imports from warmer locations show a slightly lower carbon footprint (0.4-0.5 CO2-eq/kg) than locally produced greenhouse crops, because heating, lighting and CO2 enrichment are absent.
- Intervention effect Early winter cultivation has up to five times the carbon footprint of summer cultivation.
- Association Waste-heat systems reduce, but do not eliminate, the seasonal effect on carbon footprint.
- Association Carbon footprint is primarily driven by heating, supplementary lighting and CO2 fertilization, while transportation emissions are relatively minor.
- Association Imports from southern areas usually have a higher water footprint.
- Intervention effect Replacing high-impact imports with local waste-heat crops cuts the carbon footprint by 27%.