Original sentence: He claims the consequences of this are uncertain but drastic, due to the world's dependency on fossil fuels for the vast majority of its energy.His theories have received wide attention but are disputed and have not significantly changed governmental energy policies at this time
Edited sentence: His theories have received wide attention but are disputed by some in the oil industry and have not significantly changed governmental energy policies at this time.The consequences of this are uncertain but drastic, due to the world's dependency on fossil fuels for the vast majority of its energy