Mexico Volcano Popocatépetl

Jaclyn Skurie - Pictures: Mexico Volcano Spews Ash 2 Miles High (National Geographic, July 8, 2013)

- http://news.nationalgeographic.com/news/2013/07/pictures/130708-volcano-mexico-city-popocatepetl-eruption-science/?utm_source=Facebook&utm_medium=Social&utm_content=link_fb20130709news-mexvolca&utm_campaign=Content#/mexico-volcano-grounds-flights-smoke_69159_600x450.jpg

National Geographic - Video: Vocanoes 101
- http://video.nationalgeographic.com/video/environment/environment-natural-disasters/volcanoes/volcanoes-101/