Parker Palmer On Aging With Grace; The Great Lakes Are Warming

encore edition of The 21st: We revisit our conversation with Parker Palmer. He joined us to discuss his book about looking at age as something entirely different, called "On the Brink of Everything: Grace, Gravity & Getting Old." Plus, a new report finds that the Great Lakes are warming. Higher temperatures could have a disastrous effect on Lake Michigan’s game fish which depend on cold water.

Parker Palmer writes about many of the big things in life: from our vocations to civic discourse. He’s a community organizer and founder of the Center for Courage and Renewal. At the heart of everything, though, he’s an educator. And his latest book is meant to teach us a different way about how we think about aging.

The collection of essays is called "On the Brink of Everything: Grace, Gravity & Getting Old."

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If you’ve ever been swimming in one of the Great Lakes here in the Midwest, you know they all have one thing in common: being icing cold! Even on the warmest summer day in Chicago, the water remains nippy.

But, a new report from researchers at Purdue University finds that the Great Lakes are warming. Although it might make for better swimming, higher temperatures could have a disastrous effect on Lake Michigan’s game fish, like trout and salmon, which depend on cold water.

To learn more about this, we spoke to Paris Collingsworth. He is a Research Professor in the Department of Forestry and Natural Resources at Purdue University. He’s also the Great Lakes Ecosystem Specialist for Illinois-Indiana Sea Grant.

Also on the line wiith us was Karen Murchie, a research biologist at the Shedd Aquarium in Chicago.