Peter Raven-Accounting for Bio-Diversity

Time Magazine recently profiled people it considered to be "Heroes of the
Planet" for their environmental work. Among them was the Director of the
Missouri Botanical Garden, Peter Raven. Raven works with groups in
developing nations to help them preserve the biological diversity of their
countries. In the final of a series of interviews… the Great Lakes Radio
Consortium’s Lester Graham talked to Raven about his work… and how it
balances with domestic efforts to preserve natural areas: