Go­ing Green: Se­crets in the Ice

The Weekend Australian - Review - - Television -

Satur­day, 8pm, CNN This suc­cinct 30-minute doc­u­men­tary about Green­land’s fast melt­ing ice was pulled from the CNN sched­ule last week at short no­tice be­cause of the net­work’s on-the-ground cov­er­age of events un­fold­ing in Gaza. Resched­uled to tonight, Go­ing Green: Se­crets in the Ice ex­plains how Green­land’s ice, the sec­ond largest ice mass in the world, is melt­ing fast, ex­pos­ing its peo­ple and wildlife to an un­cer­tain fu­ture. To the naked eye, the ice mass seems un­mov­ing, but some beau­ti­ful time-lapse pho­tog­ra­phy shows a land­scape con­stantly in mo­tion. The rate of the melt is fright­en­ing. The Arc­tic ice shield is re­ced­ing by about 300sq km a year. Some fear the melt­ing process could reach a point of no re­turn and that this ice could dis­ap­pear com­pletely. If that hap­pens, sea lev­els will rise 7m world­wide. Then it’s good­bye Syd­ney, Waikiki, Lon­don, Bangkok, New York, Shang­hai and Mum­bai. And the good news? This could take thou­sands of years. The real point of the ex­er­cise here is for a team of sci­en­tists to run radar sur­veys of the ice shelf from their spe­cially mod­i­fied plane, and stop along the way to dig ice cores. Th­ese re­veal much knowl­edge about the rate of melt in the past and al­low bet­ter in­formed pre­dic­tions to be made about the fu­ture.

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