Coral reefs are crucial to the ocean's ecosystem, providing sustenance to a quarter of marine life. Today, more than one third of the world's reefs are deteriorating. What's causing coral reef destruction and possible new remedies to address it.
Historian Garry Wills talks about both his very public criticisms of and his abiding commitment to the Roman Catholic Church.
- Garry Wills Is an adjunct professor of history at Northwestern University and author of numerous books, including the Pulitzer-Prize winning "Lincoln at Gettysburg," "Saint Augustine, and "Why I Am a Catholic."
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