Helium, a non-renewable gas vital to technologies like superconductors, medical imaging devices, and space exploration, is in critically short supply. Traditionally sourced as a byproduct of methane extraction, helium production is closely tied to fossil fuels, prompting scientists to search for cleaner alternatives. A new study sheds light on the potential of carbon-free helium buried beneath ancient rocks in geothermally active regions, including Yellowstone National Park. If proven viable, these natural reserves could provide a sustainable source of helium without contributing to greenhouse gas emissions. Helium Without Fossil Fuels According to the study published on April 5 in the International Geology Review, geothermal energy is crucial in releasing helium from uranium and thorium-rich rocks. As per a report by LiveScience, these radioactive elements slowly decay over billions of years, producing helium atoms that remain locked inside mineral structures unless exposed to high temperatures. “If the temperature is raised above what is called the closure temperature of the particular mineral, then the helium will be released,” co-author Jon Gluyas, a professor of geo-energy at Durham University …