The American Museum of Natural History's Science Bulletins website has some amazing Flash movies covering various earth science topics, including one pictured here on the steady decrease in Arctic sea ice volume since 1979. The Earth Viz movie is based on major news reports released by NASA in September, which showed rapid decreases in the volume of Arctic sea ice. The figure above shows that the summer sea ice extent in 2005 was 22% smaller than when satellite measurements began in 1979. Other Science Bulletins movies currently available cover the Yellowstone hotspot, a new black hole in the Milky Way galaxy, Bronx River restoration, and more.