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Wangari Maathai: A Watering Can, Some Seedlings, and the Greening of a Nation / Part I: How to Persuade 100 Thousand Poor People to Plant Trees / Part II: It's More Than a Tree Planting Movement / Part III: Soldier Planters, River-Keeping Children and Green Belt's Future\nLearn more about your ad choices. Visit megaphone.fm/adchoices