Not a fan or foe of protectionism per se yet getting books printed literally across the ocean and then shipped back on fossil fuel-guzzling container ships isn't my definition of an environmentally sound activity.
I don't know how boardgaming compares to other past-times in terms of CO2, but my hunch is that it would be a lot better than some other hobbies. Once the boardgame is purchased, it can be replayed many times without further CO2 emissions (ignoring snacks/drinks that may be consumed whilst playing).