This slideshow:
Photos are from Eric DeChaine's 2007 and 2008 trips to Alaska.

About the site:
For the past four summers, Western Washington University biology professor Eric DeChaine has researched the impact of historic climate change on plant species in order to better understand how the current changing climate patterns will affect biodiversity. DeChaine's research involves paddling down some of Alaska's wildest rivers, from the mountains to the ice-choked Arctic sea, collecting specimens as he goes. During the summer of 2008, DeChaine and a few of his colleagues traveled down Alaska's Noatak River. This site chronicles that trip.

Points of interest are marked along the river. Click each point to see photos and video from each stop along the way. You'll also hear DeChaine describing some of his experiences in detail.

More information on Eric and his research can be found on his Web site.