It's been really cold the last few days; clear and cold. My farm is in the bottom of a river valley, and on days like this, the cold air pools in the valley, so when it's 20 degrees other places, it's 5 degrees at the farm. It's nice in the summer.
2700 years ago people took this winter cold and move it into the summer. They'd saw big blocks of ice out of the local ponds and stack them in ice houses. In the USA in the last couple of hundred years these stored blocks of ice would last all year, and you'd get a regular delivery of winter to a chute in your kitchen, or to your icebox on your back porch. The ice wagon would either come if you called them (called as in walked to their shop -- remember, phones are a relatively recent invention) or scheduled a regular dropoff.
18 hours ago