Nebraska retiree uses earths's heat to grow oranges in snow

Kirsten Dirksen visits retired mailman Russ Finch in Alliance, Nebraska, who grows oranges, figs and pomegranates in a backyard greenhouse without paying for heat. The greenhouse uses the stable temperature of the earth, with underground earth tubes, to heat and cool itself.

HN 推荐的原因： HN commenters bring it up in geothermal, greenhouse and vertical farming threads as a low-tech example of growing citrus in a cold climate.

“Really interesting story/concept and I'm hoping to replicate on a small scale” 阅读 HN 讨论 ↗