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Record 152 · Video · 2026
Underground greenhouse in winter in Montana, performance
OffGrid406
“Montana winter performance update for underground greenhouse.”
Montana winter performance update for underground greenhouse. oEmbed-verified exact title: Underground greenhouse in winter in Montana, performance Channel: OffGrid406 Title indicates walipini / underground / sunken / earth-sheltered / deep-winter / Chinese passive solar / geothermal greenhouse content.
Evidence tier: video. YouTube video — builder experience, news segment, or educational talk; not peer-reviewed research unless presenting extension research.
video|candidate
- oEmbed-verified exact title: Underground greenhouse in winter in Montana, per…
- Channel: OffGrid406
- Title indicates walipini / underground / sunken / earth-sheltered / deep-wint…
oEmbed-verified exact title: Underground greenhouse in winter in Montana, performance
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