Experiments are underway on the possibility of using sweet sourgum as a source for fuel ethanol, which can be grown with only about 22% of the irrigation water required for corn. This may make sourgum a viable choice for regions with water shortages.
Diamonds & Rust by Joan Baez. In this song, Joan Baez is singing to her former lover Bob Dylan, fondly reminiscing about their 1960s affair. Baez said that this gave her inspiration to write Diamonds & Rust, and that she lied to Dylan, telling him it was about David Harris, to whom she was married from 1968-1973.
But Diamonds & Rust also contained a number of her own compositions, including the acclaimed title track, a distinctive song written about Bob Dylan. The title track was covered by British heavy metal band Judas Priest on their 1977 album Sin After Sin, and has since been one of their staples in live performance.