According to Fox, having a dog leaves more of a carbon footprint than having an SUV.
According to Katie, even if that study is true, it doesn't affect us because all of our dogs are rescues. We didn't contribute to their creation. If anything, we've reduced their carbon footprint by adopting and spaying/neutering them, preventing them from spawning even more resource hungry critters.
Take that, Fox.
By the way, here are some photos of our newest carbon footprinter, Sparrow: