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Coastal marsh erosion is moving huge amounts of carbon into the ocean
1+ week, 3+ day ago (1019+ words) Coastal marshes lock away carbon for centuries. But when they erode, that buried carbon slips sideways into the sea. Coastal marshes sit where land meets the sea. Their plants trap mud and sand, while their soils store carbon from roots…...
Ancient iron reveals how mountains and plants reshaped Earth
1+ week, 3+ day ago (703+ words) Ancient iron deposits reveal how mountain building and the spread of land plants transformed Earth's iron cycle over the past 1.2 billion years. For decades, scientists have relied on ancient iron deposits to trace how Earth’s oceans and atmosphere first filled…...