Most
goats eat underbrush like tree leaves, some weeds, and
many grasses. After eating these weeds and plants, goats
convert its biomass into milk. If someone were to use
a fossil-fuel powered lawnmower or "weed-eater," they
would hurt the environment in the following ways: Pollution,
such as carbon dioxide, sulfur oxides, hydrocarbons, etc.,
would be created Excess noise would be generated
The
biomass in the dead grass and weeds would be left to decay
into the soil to provide nutrients for new weeds to grow,
thus re-creating the weed-growth cycle. But if a dairy
goat ate the underbrush, the weeds and other plants would
be converted into milk, a fuel for either humans or other
animals. No pollution would be expended, and most goats
are quiet. In some parts of the country, dairy goats are
hired out to work as weed-eaters.
This
provides the preceding environmental benefits on a larger
scale. Also, goats are far more efficient than cows. This
means that for every gram of feed given to a goat, an
average goat will produce more milk with it than an average
cow would.