Farm groups say adverse rulings could lead to lawsuits against all types of livestock operations.

Today over 5 million U.S. households use heating oil as a main source of heat but many are looking to reduce greenhouse gas emissions. The biodiesel industry sees that as an opportunity to expand the market for Bioheat.

The biodiesel industry wants to substantially increase its production in the next decade, but industry officials say that growth will require both new and existing feedstocks as well as consistent, long-term government support through the biodiesel tax credit and annual biofuel usage mandates.

A just-announced Bureau of Land Management effort to revise grazing regulations is already sparking sharp disagreements between ranching supporters, who welcome it as common-sense reform, and opponents, who say BLM is favoring the needs of cattle over the environment.

Biofuel industry advocates say they’re pleased with how the Democratic presidential candidates are talking about ethanol and biodiesel in Iowa, although most of the campaigns haven't provided specifics about how they would increase demand.