With credit to the Woods Hole Oceanographic Institution, this interview with Dr. Timothy Shank explains the importance of hydrothermal vents to the survival of deep sea organisms in the Arctic. The link will open a page with Dr. Shank's video as well as his biography.
Woods Hole Oceanographic Institution offers a comprehensive comparison of the polar regions with sections specific to physical features, seasons, weather, ice, plants and wildlife, human impacts, global warming, and science.
From NASA, in this animation, the Arctic sea ice and seasonal land cover change progress through time, from September 1, 2009 when sea ice in the Arctic was near its minimum extent, through March 30, 2010. The animation plays at a rate of six frames per day or ten days per second.
This YouTube video lecture discusses the seasonal stratification and destratification of the world ocean, in other words, the formation of the seasonal thermocline!
Lake El'gygytgyn (67.5º N, 172º E) is one of the best preserved large asteroid impact craters on earth. In the winter of 2009, I joined an international science team and traveled to the frozen arctic lake to drill and extract lake sediments to study climate change as well as sample the rocks that were changed when the crater
The sediment in Lake El'gygytgyn, (pronounced EL-ge-GIT-gin) located in NE Siberia, holds one of the longest records of climate change anywhere in the continental Arctic. How does sediment (clay and mud) tell us something about past climate? Proxy data! By studying the microfossils of diatoms and pollen in the sediment, we can re-construct the lake environment millions of