Was just wondering if this method could be used in Canada and Scotland...

Winter temperatures in Alliance, Nebraska can drop to -20F (the record low is -40F/C), but retired mailman Russ Finch grows oranges in his backyard greenhouse without paying for heat. Instead, he draws on the earth's stable temperature (around 52 degrees in his region) to grow warm weather produce- citrus, figs, pomegranates - in the snow.



Alastair