"Climate change is accelerating beyond expectations," a joint statement said, pointing to factors including a retreat of Arctic sea ice in summer and melting of ice sheets on Greenland and Antarctica.

专家们在一份联合声明中称，“气候变化的加速度已经超过预期”，并指出包括北冰洋夏季冰面减少，以及格陵兰岛和南极冰床融化等状况。

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Engel's frustration is pretty indicative of broader voter fatigue when it comes to debate over the health care law and most things in Congress, said David Bositis, a senior research associate at the Joint Center for Political and Economic Studies, pointing to Congress' abysmal approval rating.

CNN: Voters sick of health care debate

Adm Mike Mullen, former chairman of the US Joint Chiefs of Staff, has explained Pakistan's closeness to the Afghan Taliban by pointing to infiltration of its army by the religious right.

BBC: Afghan talks: Nato urges Pakistan to fight militants