It seems all what you are mentioning have a very minor impact on CO2 emission, it only measure to 2% of emission from ski stations. From : https://www.maxiscien

It seems all what you are mentioning have a very minor impact on CO2 emission, it only measure to 2% of emission from ski stations. From : https://www.maxisciences.com/co2/climat-les-stations-de-ski-presentent-leur-premier-bilan-carbone_art5350.html https://www.maxisciences.com/co2/climat-les-stations-de-ski-... On this site of different French ski station it claims a 19g to 350g of CO2 per day per user for snow cannons, piste bashers, lift maintenance. It is less than how much CO2 a human breath (1kg) per day. http://www.n-py.com/sites/n-py/files/commons/Valeurs-C02-15-16.pdf http://www.n-py.com/sites/n-py/files/commons/Valeurs-C02-15-... The majority of CO2 emission is transportation : 57% and 27% for housing. You can personally easily reduce the CO2 emission to go to the ski station using TGV train, if we take the example of the French OP, and then buses to climb to the station. For the housing it would be the same as if you were at home.