In a world where the climate is increasingly hot and volatile, farmers are having trouble keeping their crops cool. A startup ...

Plastic sheeting is used as a covering to help let in plenty of light while keeping the cold out. The greenhouse is also heated, and can maintain a 40 deg F temperature differential with 14,000 BTUs.

You’ll need wood for the frame, and clear plastic sheeting or glass for the exterior covering to allow sunlight to reach your ...