In Alaska, for example, average temperatures have risen by about two degrees Celsius since 1970.
In Alaska, for example, average temperatures have risen by about two degrees Celsius since 1970.
以阿拉斯加为例，自1970年以来，平均温度已经上升了2℃左右。
In Alaska, for example, average temperatures have risen by about two degrees Celsius since 1970.
以阿拉斯加为例，自1970年以来，平均温度已经上升了2℃左右。