Cool walls are cool for the environment

“Wall” by DWilliams (Pixabay)

You might be aware that air conditioning is not a particularly eco-friendly technology. It cools down the space you are occupying, yet the energy used (e.g. roughly 6% of all the electricity produced in the United States) contributes to global warming. As our planet gets warmer, the effect could be self-perpetuating: hotter air resulting in higher AC usage, which could create more heat. “Cool walls” are an interesting…