Western Region - Monthly Evening Lecture Series

Title: Frozen in Time
Subtitle: How Ice Cores Are Revealing the Composition and Temperature of Earth's Atmosphere During the Past Million Years
Speaker: Todd Hinkley, Geologist
Moderator: Leslie Gordon, USGS
Date Recorded: December 8, 2005
Length: 84 minutes
Download video (MPEG 4/H.264): dec05.mp4 (237 MB) This link downloads a video file directly to your computer. Right-click (or option-click on a Mac) to ensure download. If you just click on the link then this video will play without using the Flash player within browsers that support MP4/H.264 video (Chrome, Safari, iPad).