Robin Wall Kimmerer on the wonders of nature

Botanist Robin Wall Kimmerer, a member of the Citizen Potawatomi Nation, is author of the New York Times bestsellers "Braiding Sweetgrass" and "The Serviceberry" – books that advocate for living and working in collaboration with the Earth. She talks with correspondent Martha Teichner about the importance of respecting both Western scientific knowledge and Indigenous knowledge, planting trees, and sharing the gifts of nature.