At least Germany is not importing US pellets as stated in the thread.[1] Indeed, Germany is producing more wood pellets than it consumes [2]

Wood burning (pellet burning to a lesser degree) can be detrimental due to the small particles, not an issue on the countryside, but in big cities. Germany requires pellet heaters to have particle filters by 2025 (incl. old systems)

[1] Last Image of https://depv.de/p/Deutschland-europaweit-bei-Pelletproduktio... [2] https://de.statista.com/statistik/daten/studie/171887/umfrag...