Segment 1: How rising temperatures and a changing climate will affect the tallgrass prairies.
The consequences of climate change are usually pictured as melting ice caps and islands being swallowed by rising sea levels. In the Midwest, where unpredictable weather is a staple of life, biologists say climate change is also altering the landscape of the tallgrass prairie, "one of the most endangered ecosystems in the world."
- Mary Knapp, Kansas State assistant climatologist
- Jesse Nippert, lead investigator for the Konza Prarie Long-Term Ecological Research program
Segment 2, beginning at 25:10: A modern-day explorer who treks across Antartica, alone.
Most people wouldn't risk their lives to venture across the inhospitable expanse leading to the South Pole. But Henry Worsley did, twice. We learned of his lifelong obsession with his ancestor's journey, a fellow Antartica explorer, that eventually culminated in his own adventure. After 900 miles and 71 days, Worsley's journey came to a tragic end.
- David Grann, author of "The White Darkness"
