The southern tributary actually drains a larger portion of Greenland's central ice sheet, so a retreat there could lead to a more substantial ice discharge.
实际上南部支流外流了更多格陵兰岛中心冰原的水源，所以那边的冰川消退会导致更大规模的冰流量。
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That seems to me to be a more plausible danger than the hyperinflation that those fixated on fiscal deficits and central bank balance sheet find so terrifying.
The decision by Bernanke last year to invoke the Fed's emergency powers and put mortgages and other assets on the central bank's balance sheet "is pure Tobin," Krugman said.