Large farms raising pigs and other livestock have become a major source
of pollution in some areas. If manure is natural and good for the
soil, why is this now a problem? Should manure be managed as if
it were dangerous pollution from a factory? That would be a big
change for farmers, but things are going in that direction.
Clemson even has a certificate program for Animal Manure Managers.
The question you need to answer if you pick this topic is how should we
balance the needs of farmers, the needs of their neighbors, and the
potential for damage to the environment to deal with the problem of
animal waste from large farms.