claim: Or the news from Antarctica this past May, when a crack in an ice shelf grew 11 miles in six days, then kept going; the break now has just three miles to go — by the time you read this, it may already have met the open water, where it will drop into the sea one of the biggest icebergs ever, a process known poetically as ‘calving.’
evidence: Scientists with Swansea University in the UK say the crack lengthened 18 km ( 11 mi ) from 25 May to 31 May, and that less than 13 km ( 8 mi ) of ice is all that prevents the birth of an enormous iceberg.