While I'm all for drinking local beer, is there any available data on whether it's actually more environmentally friendly than beer made by larger producers? I

While I'm all for drinking local beer, is there any available data on whether it's actually more environmentally friendly than beer made by larger producers? I can imagine some aspects of the brewing process that would tip the scales either way, e.g. economies of scale favoring large producers, potentially-shorter supply chains favoring small producers.