Most of us will never make it to the top of Mount Everest. In fact, most of us will not even go to that part of the world at all. Frank Giustra did, however, and he wrote about his exploits in an article on Modern Farmer. The food on the trip consisted mostly of potatoes and French fries, processed meats, soups and, at one point, yak cheese.
But at some point, the diet also started to include greenery. In 2012, one of the guides, Temba, and his wife, decided to build their own greenhouse at 13,000 feet. Using stones and mud for the walls and corrugated plastic and plastic sheeting for the roof, they crafted a utilitarian greenhouse. Now, they are able to grow tomatoes, bok choy, broccoli, cucumber, squash and lettuce throughout the year, as well as flavor-boosting herbs like mint, chives and coriander.