A groundbreaking solution is here for the soaring food prices and looming shortages.
Meet the Walipini: an underground greenhouse designed over two decades ago for South American mountainous areas.
Now, it brings year-round growing to anyone, even in extreme weather, at an incredibly low cost.
Also known as a pit or underground greenhouse, the Walipini harnesses passive solar heating and earth sheltering to create a super-efficient and affordable growing space.
Its design has a rectangular hole 6-8 feet deep covered by …
