Carbon dioxide, in his view, is the main culprit. Black carbon deposited on the Arctic snow and ice, he says, will have only a minimal effect on its reflectivity.
他认为二氧化碳是主要的“凶手”，而北冰洋雪和冰上聚集的黑碳对反射作用的影响很小。
2
Black carbon deposited on the Arctic snow and ice, he says, will have only a minimal effect on its reflectivity.
他说，淤积在北极冰雪中的黑炭，对其反射率只有极小的作用。
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But the pollutant also ACTS to reduce the reflectivity of ice and snow, allowing heat absorption and hastening surface melt.