yeah, i don't think it will make one lick of difference to the atmosphere, but freezing to death will happen without the heat, and carbon is the best natural source of heat, and you don't even need modern technology to have heat from carbon, in the absolute worst case scenario... just probably need to have a few adequate tools to prepare for it and not stupid to lay up a good stack for several years of bad weather
it's also cold here in the north of madeira right now btw... it feels like the winter is never going to end