Pulitzer Prize-winning biographer Jon Meacham on the evolution of Abraham Lincoln's moral principles and political leadership -- and what the era of Lincoln can teach us about the state of our democracy today.
Global climate change is a near-certainty and will only get worse, according to the United Nations’ Intergovernmental Panel on Climate Change. A panel talks about the latest consensus findings from scientists who specialize in climate studies, and what consequences they predict for Earth’s inhabitants.
- Dr. James McCarthy Professor, oceanographer, and director of the Museum of Comparative Zoology at Harvard University
- Dr. Gerry Stokes Director of the Joint Global Change Institute of Pacific Northwest Laboratories and the University of Maryland
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