To clear the fields of weeds and grass at their headquarters, Google could have hired a lawn-cutting service; instead they went with a greener initiative.
...we decided to take a low-carbon approach: Instead of using noisy mowers that run on gasoline and pollute the air, we've rented some goats...
A herder brings about 200 goats and they spend roughly a week with us at Google, eating the grass and fertilizing at the same time. The goats are herded with the help of Jen, a border collie. It costs us about the same as mowing, and goats are a lot cuter to watch than lawn mowers.
What we'd like to see next: elephants spray-cleaning the windows of the Googleplex.