Part 2 Bill McKibben at Barnfest 2010 Posted on September 17, 2010 by Mountainkeeper ►► Part 2 Bill McKibben at Barnfest 2010 … ec.environmentalcountdown.orgSep 17, 2010 Bill McKibben (Part 2 of 2) speaking at 2nd Annual Catskill Mountainkeeper - Barnfest July 2010. To learn …