Original sentence: It could become the link between a range of energy sources, carriers and storage.Research is being conducted on hydrogen as a replacement for fossil fuels.There are no "hydrogen wells" or "hydrogen mines" on Earth, so hydrogen cannot be considered a primary energy source like fossil fuels or uranium
Edited sentence: Research is being conducted on hydrogen as a replacement for fossil fuels and storage.There are no "hydrogen wells" or "hydrogen mines" on Earth, so hydrogen cannot be considered a primary energy source like fossil fuels or Uranium