The worst wildfires in US history, Arctic sea ice trending towards a historic low, simultaneous hurricanes in the Atlantic Ocean and the hottest summer in the northern hemisphere since records began: scientists say this year’s sequence of natural disasters and record temperatures have exceeded their worst fears.
美國爆發史上最嚴重野火，北極海冰趨向歷史低位，大西洋同時形成幾個颶風，北半球迎來有記錄以來最熱夏天——科學家們表示今年一連串的自然災害和創紀錄氣溫超出了他們的最糟糕擔憂。
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