If this warming up took place, the ice caps in the poles would begin to melt, thus raising sea level several metres and severely flooding coastal cities.
如果这种变暖发生，两极的冰帽将开始融化，从而使海平面上升数米，并严重淹没沿海城市。
2
It caps new bond issues at just below this year's expected level, but they will still outstrip tax revenues.
该草案以略低于本年预算水平的幅度发行新债券，但仍将超过税收。
3
There is evidence in this ice-core record of seven periods when the ice caps expanded, and each of them shows a steady decline in the level of greenhouse gases after the ice receded again.