Using radiocarbon techniques on sediments collected from four rivers, they determined that bacteria may alter riverine carbon, making it indistinguishable from ocean carbon.

Using radiocarbon techniques on sediments collected from four rivers, they determined that bacteria may alter riverine carbon, making it indistinguishable from ocean carbon.

科学家以放射性碳技术研究收集自四条河流的沉积层，发现细菌可以改变河水里的碳，使它与海水里的碳无法区别。