Researchers linked to Norway's technical university (NTNU) in Trondheim contend that moose are responsible for tons of gas emissions a year through their frequent burping and, well, farting.
A grown moose will burp and pass so much methane gas in the course of a year that it amounts to 2,100 kilos of carbon dioxide emissions. A motorist would have to drive 13,000 kilometers in a car to emit the same.