Melting ice, droughts, earlier springs, as well as disappearing polar bears and frog extinctions are among the signs that global warming is already having an effect on the planet, experts say.
专家说，冰层融化，干旱，春季提早，以及北极熊和青蛙的消失，都在向我们发出信号：全球变暖已经在影响这颗星球了。
A young girl, disguised as a frog, participates in the traditional Neuburg ice swim on January 31, 2009 in Neuburg, Germany.
1月31日，一个小女孩扮作青蛙参加德国诺伊堡传统冬泳。
A young girl, disguised as a frog, participates in the traditional Neuburg ice swim on January 31, 2009 in Neuburg, Germany.
1月31日，一个小女孩扮作青蛙参加德国诺伊堡传统冬泳。
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