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02172cgm a2200385Ia 4500 001 D9369806FBCF11DEB3E93EDF5F36B428 003 SILO 005 20100120073657 007 vd cvaiz| 008 041011p20042001nju050 vleng d 028 42 $a FFH 33283 $b Films for the Humanities & Sciences 035 $a (OCoLC)56698039 040 $a KZS $c KZS $d SILO $d WAU $d MTG $d IOP $d SILO 245 0 $a Snowball earth $h [videorecording] / $c a BBC/Discovery Channel co-production ; produced & directed by Chris Durlacher. 246 1 $i Title on container: $a Snowball earth, how the planet froze and lived to tell 260 $a Princeton, N.J. : $b Films for the Humanities & Sciences, $c c2004. 300 $a 1 videodisc (50 min.) : $b sd., col. ; $c 4 3/4 in. 538 $a DVD-R 508 $a Camera, Marcus Birsel, Sergey Dubrovsky ; on-line editor, Mike Curd ; film editors, David Fairhead, Horacio Queiro ; narrator, Dilly Barlow ; series editor, Bettina Lerner. 500 $a Originally broadcast in 2001 on the television series: Horizon. 520 $a Discusses research into the theory that 600 million years ago global glaciation occurred on the earth. Scientists across the world are slowly accepting this controversial theory -- that the earth was deep-frozen for ten million years, almost all life was wiped out, but after the freeze, the earth warmed up rapidly about 600 million years ago, and there emerged the first complex creatures on earth. Scientists now believe that the so-called 'snowball earth' theory could hold the key to the evolution of life on this planet. But this theory could have huge implications. 650 0 $a Snowball Earth (Geology) 650 0 $a Glaciers. 650 0 $a DVD-Video discs. 700 1 $a Durlacher, Chris. $4 drt $4 drt 700 1 $a Barlow, Dilly. $4 nrt 710 2 $a British Broadcasting Corporation. 710 2 $a Discovery Channel (Firm) 710 2 $a Films for the Humanities & Sciences (Firm) 730 0 $a Horizon (Television program) 941 $a 1 945 $a dvv 952 $l OMAX631 $d 20100120073657.0 956 $a http://locator.silo.lib.ia.us/search.cgi?index_0=id&term_0=D9369806FBCF11DEB3E93EDF5F36B428 994 $a 02 $b IOPInitiate Another SILO Locator Search