Where did you get those stats from? Curious.
One AI request is 0.38 g in Sweden and 3.2 g in Texas
(Tofu is about 0.1 to 0.3kg of Co2, Seitan about 0.1kg of Co2 per equivalent 100g)
A burger made in New Zealand likely has a different carbon footprint to a burger made in Switzerland which likely has a different carbon footprint to a burger made in Texas.