[yakubin]

> A ton of coal will create much more co2 than ton of wood, isn't it?

Yes. But that hardly matters.

> For the same amount of energy the result should be similar amount of co2.

No. Apparently, wood is estimated to emit 30% more CO2 than coal for the same amount of energy[1].

> Coal is worse for people because burning it creates many unhealthy chemical components. Sulfur, heavy metals, etc

Is it more than when you burn wood though? I’m not knowleadgable enough to answer this question. I found one link about it[2], but currently I don’t have time to read it. In any case, the fact that it produces more CO2 than coal is a good argument against wood in my eyes. My argument is against wood, not in favour of coal. Coal is just a benchmark to measure against.

[1]: <https://ecosystems.psu.edu/research/centers/private-forests/...>

[2]: <https://www.intechopen.com/chapters/18644>