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.
Merry Clayton is the female vocalist. She is a gospel singer who did backup vocals for a number of artists, including Ray Charles. She had a regular role on the '80s TV show Cagney and Lacey, and played a maid in the movie Maid To Order. Clayton is featured in the 2013 film 20 Feet from Stardom, where she talks about her appearance on this song.