Eleven parents are sitting in a circle in an airy, glass-walled living room in south Austin, Texas, eating organic, gluten-free, nondairy coconut ice cream.

德克·萨斯南奥斯汀的一间通风的、玻璃墙的起居室里，十一位家长围坐成一圈，吃着有机、无谷蛋白也不含奶制品的可可冰激凌。

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Founders of the polar circle diving center are making holes in the ice with help of hand drills and augers.

极地圈中心的创建者正在冰里用钻孔机钻孔。

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At last, as easy as feathers coming to earth, the circle landed on the ice.

这个白色圆圈从高空往下飘落，最后，就仿佛羽毛轻落到地上一般降在了冰面上。

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Some climate change naysayers point to Antarctic ice on the rise, as if that makes up for melting ice in the Arctic Circle.

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Returning to Connaught Place, seek out a child-friendly street snack on the inner circle, where ice cream vendors and a nameless stall dishing up particularly tasty sweetcorn ply their wares.

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It's the cue for effusive guide Fridjon Thorleifsson to introduce the surrounding Columbia Icefield, a 77-square-mile web of six silvery tentacles between Jasper and Banff, and the largest ice cap south of the Arctic Circle.

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