Peatlands store a significant amount of global carbon, but oxygen limitation in these environments prevents the enzyme phenol oxidase from breaking down phenolic compounds that inhibit biodegradation. This restriction limits the release of carbon dioxide into the atmosphere, acting as a 'latch' that holds in place a vast carbon store. Oxygen availability is crucial for phenol oxidase activity, which is essential for decomposing phenolic compounds. In anaerobic conditions, phenol oxidase activity is severely constrained, leading to the accumulation of phenolic materials that inhibit other biodegradative enzymes. Experiments showed that under aerobic conditions, phenol oxidase activity increased significantly, leading to a reduction in phenolic compound concentrations. This suggests that oxygen availability is a key factor in controlling the rate of peat decomposition. In the context of climate change, increased peat aeration due to droughts could eliminate this critical mechanism, releasing stored carbon into the atmosphere. The study also highlights the importance of cross-modal plasticity in the auditory cortex of prelingually deaf individuals, where the auditory cortex may be rerouted to other cognitive functions, affecting the response to cochlear implants. The findings suggest that oxygen constraints on phenol oxidase could be a fragile 'latch' mechanism that holds in place a vast carbon store, with significant implications for future global warming.Peatlands store a significant amount of global carbon, but oxygen limitation in these environments prevents the enzyme phenol oxidase from breaking down phenolic compounds that inhibit biodegradation. This restriction limits the release of carbon dioxide into the atmosphere, acting as a 'latch' that holds in place a vast carbon store. Oxygen availability is crucial for phenol oxidase activity, which is essential for decomposing phenolic compounds. In anaerobic conditions, phenol oxidase activity is severely constrained, leading to the accumulation of phenolic materials that inhibit other biodegradative enzymes. Experiments showed that under aerobic conditions, phenol oxidase activity increased significantly, leading to a reduction in phenolic compound concentrations. This suggests that oxygen availability is a key factor in controlling the rate of peat decomposition. In the context of climate change, increased peat aeration due to droughts could eliminate this critical mechanism, releasing stored carbon into the atmosphere. The study also highlights the importance of cross-modal plasticity in the auditory cortex of prelingually deaf individuals, where the auditory cortex may be rerouted to other cognitive functions, affecting the response to cochlear implants. The findings suggest that oxygen constraints on phenol oxidase could be a fragile 'latch' mechanism that holds in place a vast carbon store, with significant implications for future global warming.