01854cgm a2200445 4500 758465110 TxAuBib 20050912120000.0 051031s2004||||||||||||||||||||||v|eng|u 9781593751333 DVD 1593751338 DVD 783421378698 WG37869 WGBH (OCoLC)54802156 TxGR TxAuBib Descent into the ice [DVD]. Exploring Mont Blanc's hidden glacial lakes. Fullscreen version. [Boston, MA : WGBH, 2004. 1 digital video disc (60 min.) : sd., col. ; 4 3/4 in. Closed captioned SPECIAL FEATURES : printable materials for educators ; access to Descent into the ice web site. Written, produced and directed by Liesl Clark ; consulting producer : David Breashears ; managing director : Alan Ritsko ; senior executive producer : Paula S. Apsell. Armed with high-tech gear and courage, a NOVA team goes deep inside the sub-freezing waters of Mont Blanc's Mer de Glace looking for clues to find out if another catastrophe may be building. (WGBH, 2004.) 20050912. Glaciers. Catastropohes (Geology.) Kettle holes. Glaciology. Geology Audio-visual aids. Blanc, Mont (France and Italy.) Documentary films. Science films. Descriptive videos. Television films. WGBH (Television station : Boston), Mass.) Nova (Television program.) Closed captioned. RV8