This 1-hour webinar was part of the C-ISE online course being offered by PolarTREC and the University of Alaska Fairbanks. The presentation theme was earth science, and discussed climate change in the arctic and how scientists are using glacial features to study arctic change. The presentation was conducted by PolarTREC Teacher, Mark Goldner, researcher Ross Powell, and Research Experience for
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