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南北半球水深火热 温差直逼200度

雪梨邦迪海滩七日挤满戏水消暑游客。 欧新社

美新罕布夏州五月岬街上冷得“冒烟”。 美联社

极端气候作祟,北半球的美国和加拿大近日天寒地冻,已造成21人死亡,海陆交通大乱,加拿大低温甚至下探摄氏零下五十度;南半球的澳洲却遭热浪强袭,雪梨气温飙上117℉,刷新近80年来纪录,墨尔本部分柏油路融化,当局颁布全面禁火令,以免星火燎原。

美加东部遭大雪、刺骨低温和强风侵袭,美联社说,约一亿人受影响,从威斯康辛州到德州,至少19人死亡,加拿大也传出两死。恶劣天气造成美国数以千计航班取消,6日逾3420架次延误,其中纽约肯尼迪国际机场和南卡查尔斯顿国际机场情况最严重,许多跨洋班机掉头或转降。新英格兰和中大西洋地区数以百计学校关闭,铁路服务暂停或减班。

极地寒流和危险寒风让美东体感温度降至-49℉。美国国家气象局警告,皮肤暴露在此情况下,10分钟就可能冻伤。新罕布夏州最高峰、海拔1990公尺的华盛顿山山顶6日气温降至摄氏零下卅八度-36℉,只差最低温纪录两度,但在时速高达180℉公里的最大阵风强袭下,体感温度达-92℉,与加拿大安大略省的阿姆斯壮市并列全球第二冷。

6日全球最冷的地方由加拿大北部尤里卡和俄罗斯雅库次克并列,两地气温都是-38℉。但气象预报指出,加拿大安大略省和魁北克省北部气温恐继续下探至-58℉。

反观澳洲最大城雪梨郊区彭里斯市,7日高温飙上117℉,刷新当地1939年以来的纪录。澳洲网球公开赛在雪梨的暖身场热到延赛,墨尔本休姆公路约十公里路段融化变得软黏,影响交通。当局颁布全面禁火令。

专家表示,澳洲1910年来平均气温升高约33℉,气候变迁推升海陆气温,使炙热天数和野火季都将延长。

Ice floats along the Hudson River as New York shivers through record low temperatures

Ice floats along the Hudson River as the skyline of New York City and One world Trade Center are seen during freeze temperatures on January 06, 2018

Earlier Saturday, the National Weather Service issued a wind chill warning for communities in Western and Central Massachusetts (Pictured: Winthrop, Massachusetts)

Meteorologists studying weather patterns in the northeast past of the US say that wind chills in one part of New Hampshire were forecast to hit negative 100 degrees

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New Yorkers are now dealing with a major drop in temperatures. Temperatures are to remain in the teens throughout the weekend. Above, the Statue of Liberty on Friday

Central Park's normally green lawns are turned white thanks to the snow storm (seen above on Friday)

Above, another view of La Guardia Airport in the borough of Queens on Friday

Ice floats near the Spuyten Duyvil train bridge on the Hudson River on January 5, 2018 in the Bronx Borough of New York City

The Stuyvestant Town-Peter Cooper Village residential complex, the largest apartment complex in the city, is seen above on Friday

Flooded ice streets in Duxbury, Massachusetts on Friday

Workers dig snow Friday morning in Boston, Massachusetts after a massive winter storm dumped more than a foot of snow

Workers clear snow in Boston's Seaport district on Friday following Thursday's snow storm

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