"The coil was then insulated, buried, and brought into the greenhouse where it would heat from ground level, mimicking a radiant floor system," they continued. Then, they ran a line of floor coils ...

"The greenhouses are wonderful. Especially in the winter it takes about 40% off the heating efforts." If you don't have access to grid-provided energy, you have two main ways to heat a property. The ...

to reflect sunlight onto Mars and heat the surface. The idea is that over many years, the rise in temperature would release greenhouse gasses. The question remains how to get such large mirrors ...