The affect of flatulent cows continues to spread!!

All well and good, but what does this have to do with cattle flatus?  It's mentioned nowhere in the article.

I may have mentioned this either here or on another forum, but my son and I visited a livestock farm the other day --- he'd never seen cattle grazing before --- and he asked if the farmers clean up the "cow patties" in the field.  No, son, I explained to him, they just leave it be, nature takes care of that.  That is a question that a kid raised in the suburbs might well ask.