Will Steger saves some propane

Another real head-scratcher is at the beginning of the video linked here.

It shows a large crew of modern people working with hand tools to cut ice from a lake, then using a team of horses to haul it away. On the video, Steger calls this "free" refrigeration, and claims "you're not putting any carbon in the air".

Questions:

1. Was any carbon dioxide emitted in transporting the crew and horses to and from the work site?

2. Was any carbon dioxide emitted in growing, processing, transporting and preparing the food that powered the people and horses during this endeavor?

3. Was any carbon dioxide (or methane) emitted by the crew or horses during this endeavor?