There's also the "ice pond"[0] technique: freezing and storing water in the winter to use for air conditioning in the summer. [0]https://en.wikipedia.org/wiki/

There's also the "ice pond"[0] technique: freezing and storing water in the winter to use for air conditioning in the summer. [0]https://en.wikipedia.org/wiki/Ice_pond https://en.wikipedia.org/wiki/Ice_pond