The U.S. Geological Survey has unveiled a groundbreaking map showcasing the potential for naturally occurring geologic hydrogen resources in the lower 48 states. This innovation challenges the long-held belief that such hydrogen reserves were insufficient for energy use. Researchers view this discovery as a step towards embracing a new, low-carbon energy source. The map identifies regions, including parts of Kansas, Iowa, and California, where significant subsurface hydrogen resources may exist. This development is significant as burning hydrogen only results in water as a byproduct, offering a cleaner alternative to traditional fossil fuels that emit carbon dioxide. The study conducted by USGS geologists Geoff Ellis and Sarah Gelman estimated a substantial potential for hydrogen accumulations, paving the way for exploration in promising locations. While high concentrations of geologic hydrogen remain uncommon, the map serves as a pioneering tool to pinpoint areas with the potential for hydrogen accumulation. Sarah Ryker and Sarah Gelman from USGS emphasize the significance of this map, showcasing the tantalizing possibility of a new energy resource beneath the U.S. surface. This advancement in understanding geologic hydrogen resources has sparked optimism among experts, hinting at a more sustainable and environmentally friendly energy future.