North Carolina isn't rich in coal, natural gas or oil, but it has more hogs than nearly any other state. And for years, scientists and farmers have been trying to turn swine biogas into electricity.
(Image credit: James Morrison/WUNC)
(via NPR)
North Carolina isn't rich in coal, natural gas or oil, but it has more hogs than nearly any other state. And for years, scientists and farmers have been trying to turn swine biogas into electricity.
(Image credit: James Morrison/WUNC)
(via NPR)