This graph shows a significant increase in the number of glacial earthquakes in Greenland since 2002. (climatehotmap.org)
Indeed, in another paper in the same issue of Science, Goran Ekstrom of Harvard University reported a marked increase in so - called glacial earthquakes (seismic events recorded throughout the world when Greenland's glaciers slip past rock) since 2002. (scientificamerican.com)
The best bonus feature, by far, is the 30 - minute clip of Al Gore updating his statistics and focusing on what has transpired since they finished shooting the movie, including glacial earthquakes and the rise in the oceans» acidic level. (bullzeye.com)