Ice harvest failures: Where's the CO2 correlation?

2009: Hand-cut blocks build icy harvest - Utica, NY - The Observer-Dispatch

Last year’s harvest was canceled due to a warm winter, but this year the ice harvested was close to 18-inches thick.

1907: ICE HARVEST HALTED.; Warm Weather Brings Fear of Another Famine Next Summer

ALBANY, Jan. 4. -- Whether an ice famine will come again next Summer depends on the weather of the next few days. The warm spell and rainy period which set in last week has broken up the frozen surface of the Hudson River as far south as Coxsackie and north to Troy. The Mohawk ice also has broken up and moved down into the Hudson.

1911: Albany: ICE HARVEST ABOUT OVER.; Two-thirds as Large as Average Crop -- Warm Spell Softening It

1921: Wisconsin: Ice Harvesting 1880-1900

Finally, the unseasonably warm winter of 1920-21 finished the industry.

1930s, Colorado: Warm winters a big problem for ice crop

W. E. Doyle had a 20-year contract with the American Refrigerated Transit. In the early 1930's Monument began to have warm and open winters. The lawyer failed to put a clause in the contract "If due to weather conditions the ice crop failed, contract would not be fulfilled" so Doyle had to forfeit several thousand dollars, which broke him and forced him to sell to Mr. VanDiest.

1860, 1870: Ice crop failures on the East Coast

However, Mother Nature can be fickle. Farmed ice had one drawback—unseasonably mild weather could produce “ice famines.” When the Hudson River failed to produce its crop of ice during the warm winter in 1860, the ice trade centered on Maine’s Kennebec River. In 1870 the ice crop failed south of Boston.