[MichaelCollins]

> What will they do 5 years from now (or however many years that all forests are gone)?

Solar panels and heat pumps seem like a good long-term solution, but that can't be done in time to keep people warm this winter. So for this winter, what would you have them do? Freeze? Travel back in time a few years and come up with a better solution?

[tuatoru]

Recruit some of the displaced Ukrainians from Poland, and get them to install insulation.

Edit: you seem to be under the impression that this "firewood" will go to households of all income levels. GP's statement about naivete is reinforced.