Today on Buckmaster – We get things rolling with Kevin Dahl, Arizona Program Manager for the National Parks Conservation Association. Next, we check in with Tom Collier, Buckmaster consumer affairs contributor. Then, Fletcher McCusker talks about his new venture Sinfonia Health Care Corporation. Plus, how tree-rings tell the story of climate change. We hear from Dr. Tom Swetnam, UA Regents Professor and Director of the Laboratory of Tree-Ring Research.