题目内容：
In this text, the author mainly discusses that
A．the oceans provide a cushion against the warming planet A．the oceans provide a cushion against the warming planet
B．scientists cannot precisely predict the consequences of ice melting
B．scientists cannot precisely predict the consequences of ice melting
C．the results of sea-level rise will be more worse than we expected
C．the results of sea-level rise will be more worse than we expected
D．the policymaker should take actions to tackle the environmental problems
D．the policymaker should take actions to tackle the environmental problems
参考答案：【答案仅供学习，请勿对照自行用药等】
答案解析：