 Tanya J. Powers, Fox News. Despite months of protests by farmers over climate measures in Europe, Denmark will tax livestock farmers over their cows and pigs emitting flatulence. Polite word is methane emissions. The typical Danish cow emits 6.6 tons of gas a year. The tax at $43 per ton, that's $283 a cow for nearly 1.5 million cows in Denmark. I'm Therese Crowley. This is Fox News.