Modern wildcatters see gushers of green / Researchers have high hopes that a tropical grass known as a 'superweed' will one day replace crude oil or farmers have high hopes that 'superweed' will prove an able successor to crude oil in the years

"Researchers have high hopes that a tropical grass known as a 'superweed' will one day replace crude oil or farmers have high hopes that 'superweed' will prove an able successor to crude oil in the years to come"