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Carbonate-Dissolving Microbes: A Game Changer for Sustainable Bioenergy New Insights into the Global Carbon Cycle A research team from the University of Nebraska-Lincoln has uncovered unknown microscopic contributors to the global carbon cycle, offering fresh insights into carbon dynamics and supporting sustainable bioenergy development. The Role of Methanogens in Carbonate Dissolution A recent published in Communications Earth & Environment  is among the first to demonstrate that methanogens — microorganisms prevalent in low-oxygen environments such as lakes, wetlands and permafrost —can sustain their growth by tuilizing hydrogen and dissolving calcium carbonate , a widely abundant mineral on Earth. This metabolic activity generates methane, serving as both a biofuel and a potent greenhouse gas. Early Demonstrations of Microbial Calcium Carbonate Dissolution "This study provides one of the earliest demonstrations of microbial calcium carbonate dissolution occurring at elevat...