Aspen Words continues Winter Words, its "apres ski for the mind" series of author presentations, tonight, February 7, when it presents Colorado native, photographer/filmmaker Pete McBride and author Kevin Fedarko. Both men are environmental advocates and have produced award-winning books and films for publications including National Geographic, the New York Times, Smithsonian and more. For much of 2015 and 2016, Fedarko and McBride trekked the Grand Canyon's interior rim, documenting the development threats that are poised to change the Canyon forever. The discussion begins at 6pm at Paepcke Auditorium on the Aspen Institute campus.