Gaseous gold.

The article discusses the potential of a clean fuel called "gold hydrogen" that could accelerate the transition to a net-zero economy. Gold hydrogen is a naturally occurring gas that burns cleanly and produces only water when burned. It is found underground in areas with specific geology, such as the mountains of Oman. Researchers and start-ups are prospecting for gold hydrogen, but there are still uncertainties about its abundance and extraction methods. Efforts are being made to stimulate the ground to increase hydrogen production, and a pilot project is planned in Oman to test this approach. However, there are challenges and risks associated with extracting and using geologic hydrogen, including the need for compression and transportation infrastructure, as well as potential environmental impacts. [Extracted from the article]