What is an advantage of using hydrogen fuel over petrol?

Using hydrogen fuel presents a significant environmental advantage primarily because it produces only water as a byproduct when burned, releasing no carbon dioxide (CO₂). This characteristic contributes to a reduction in greenhouse gas emissions, which is vital for combating climate change and reducing air pollution.

The clean-burning nature of hydrogen makes it an attractive alternative to fossil fuels like petrol, which emit harmful gases, including CO₂, when consumed. By shifting to hydrogen fuel, we can minimize the negative environmental impacts associated with traditional fuels, contributing to a more sustainable energy future.