“The impossible is possible.” American teacher Ronald Sakolsky celebrates Yin Yuzhen as she is named among the UN Food and Agriculture Organization’s 100 Women Heroes. After only about 10 trees survived her first planting effort, Yin kept going, spending decades turning barren sand in China into greenery. Sakolsky, who helped raise $5,000 to support her work in 1999, reflects on the determination behind her extraordinary achievement.

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