There is so much media hype and public misunderstanding regarding the issue of climate change that advanced students need to be equipped to sort through the information available, find data from appropriately moderated scientific data bases, and learn to support their views with good scientific evidence rather than emotion. This lesson provides the outline for giving students some preliminary
How can the ocean be colder than 0 degrees C, the temperature at which water freezes? As it turns out, the concentration of the particles (in this case, the ions from the salt) in ocean water lowers the temperature at which the saltwater will freeze. Students will learn how ocean water freezes at a lower temperature than freshwater by
The website, Ice Stories, features short interviews and other interesting content live from the polar regions. This weblink has a short video interview of PolarTREC teacher, Craig Beals, while taking part in a PolarTREC expedition with Barry Lefer at Summit, Greenland.
This video was shot by Mike Etnier at Makanrushi Island, Russia in July 2008. This is underwater footage of one of several large schools of Atka mackerel that were feeding on krill at the surface. See "Atka mackerel and krill" for surface footage of one of the schools of fish and underwater footage of the krill. For more
This video was shot by Mike Etnier at Makanrushi Island, Russia in July 2008. There are several thousand Atka mackerel feeding on krill at the surface. See "Atka mackerel school" for under-water footage of one of the schools of fish. For more details on the feeding aggregation, and its relevance to our archaeology studies, read the journal entry
PolarTREC Teacher, Craig Beals, talks about his experiences at Summit, Greenland in this online version of an article published by the Billings Gazette on July 21, 2008.