<h1>Global Meltdown</h1> <p> <p>Glaciologist Lonnie Thompson of Ohio State University discusses why we should worry about glaciers that are melting worldwide.</p> <p>Podcast produced by David Levin. Music by Michael Potvin. <span class="caps">NOVA</span> is produced by <span class="caps">WGBH</span> in Boston. Funding for <span class="caps">NOVA</span> is provided by David H. Koch, the Howard Hughes Medical Institute, and public television viewers.</p> <p>For more scientist profiles, visit our Web site at http://www.pbs.org/nova/sciencenow</p> </p>