White hydrogen found in billion-year-old Canadian rock could fuel clean energy production
Deep beneath northern Ontario, some of Earth’s oldest rocks are quietly giving off hydrogen. At Kidd Creek mine near Timmins, geochemists tracked gas seeping from boreholes drilled two to nearly three kilometers below the surface. What they found was not a one-off puff or a short-lived flare. The hydrogen kept coming, in measurable amounts, over months. In some cases, it lasted for more than a decade. That matters because hydrogen already plays a central role in modern industry, especially in fertilizer, methanol, and steel production. Yet most of it still comes from fossil fuels or other energy-intensive processes. The new work suggests some of that supply might instead come straight from the crust. This would be possible in places where the right rocks already lie under active mining districts. Researchers from the University of Toronto and the University of Ottawa report that all 35 boreholes they analyzed at Kidd Creek released hydrogen. Across the dataset, the average discharge came to 0.008 tonnes per borehole per year. When extrapolated across the mine’s 14,801 boreholes, that works …







