Exact same thing can be said for burning petrol; just plant a tree to offset the CO2 from the burn, and you are good to go. After all, both fuels were produced from organic matter. One was done by the earth over thousands of years through compression and decay, the other by a person extracting it directly from the tree.
I'm out in a few weekends I will take some pics and try a review of it
Good point
Not a clue
That said, white birch is used for the birch oil that is sold to clinical aromatherapists, and I have no idea why it is preferred over the other varieties. Is it somehow 'cleaner' ?
Maybe John Fenna might know ? he's one.
It's almost all silver birch around here, so though I know what I get from them re sap and bark, etc., I have nothing to compare them to.
Interesting topic and thread
M