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    Scientists excited by huge New Zealand sinkhole

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Scientists excited by huge New Zealand sinkhole

An enormous sinkhole appeared in New Zealand after record amounts of rainfall revealed thousands of years of the region's volcanic past. Sam Kelway of TVNZ reports.

Scientists excited by huge New Zealand sinkhole

An enormous sinkhole appeared in New Zealand after record amounts of rainfall revealed thousands of years of the region's volcanic past. Sam Kelway of TVNZ reports.