Glaciers, Deserts, and Wind (ESC-1000 & ES-105)

New channel Sven Holbik: title sample judged 'whole' (Full-length university-style lectures and technical microscopy tutorials across earth science, oceanography, and geology); passed a second screen for sellers/exam-prep/re-uploads; 3 of 3 sampled transcripts showed teaching, 0 not; every title checked strictly; oEmbed verified.