With more than a billion cows around the world, an immense amount of dung is produced each day. Most of these droppings will evidently disappear, as the world is still green rather than brown. Now a team of scientists have joined forces with local volunteers to find out who decomposes the most of it in Finland, Northern Europe.<img src="http://feeds.feedburner.com/~r/sciencedaily/~4/i1dhLZz9ClM" height="1" width="1"/>
