The History of Glacier Discovery in the American West and Their Role in Global Sea Level Change

Picked one by one from a mixed channel. Transcript check: both title readers certain; 4 of 5 sampled certain picks confirmed by transcript, none failed. Channel rule: Include only full-length lectures or panels where a scholar, analyst or practitioner explains a specific international-affairs, history, security or economics topic in depth. Exclude promotional clips, fellows and student showcases, testimonial shorts, event welcomes and closing remarks, and politician speeches or reports.