SARANAC LAKE Clarkson University philosophy professor Bill Vitek will be at the Adirondack Unitarian Universalist Community Church Sunday, Nov. 23 to discuss themes from his current book project. In Toss the Paddle! Finding Our Way Out of Post-Carbon Creek, his central claim is that global indicators of nearly every sort signal the end of a way of thinking about and living in the world that have held sway for nearly 400 years, and had their earliest origins in the invention of agriculture 12,000 years ago in the Fertile Crescent. What takes its place is a conceptual revolution that goes well beyond energy efficiency, organic food, hybrid cars, and compact fluorescent light bulbs. We will need to, quite literally, change our minds and accept the limits and boundaries of living in a sun-powered ecosphere. The service will begin at 10 a.m. at 89 Church Street in Saranac Lake.