At Google’s Mountain View headquarters, there are a few large grassy fields that need mowing on occasion – as large grassy field often do, in order to clear pesky weeds and reduce fire hazards (common is this area of California). This spring the forward thinkers at Google have decided to take a low-carbon approach to their lawn care.

Instead of using growling lawnmowers that run on gasoline and make a ton of annoying noise, they’ve rented some goats from California Grazing to do the job. A herder brings in about 200 goats and they spend about a week at Google green patches, eating the grass and fertilizing at the same time. The goats are herded with the help of Jen, a border collie. For the size of the area, this works out to be pretty much the same cost as regular mowing and landscaping fees.