More than half of the US is in drought as extreme heat and a persistent lack of rain and snow raise the spectre of water shortages and fire risk, while scientists forecast the return of the El Niño warming cycle.
由于极端高温以及持续缺乏降雨和降雪,美国超过一半地区正处于干旱之中,这加剧了潜在的供水短缺和火灾风险,与此同时,科学家预测厄尔尼诺变暖周期将回归。
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