Maathai paid Kenyan women per tree that survived, not per tree planted

Through her volunteer work with the National Council of Women of Kenya, Wangari Maathai kept tracing rural hardship — malnutrition, water scarcity, dwindling firewood — back to the same root: forest and soil that kept disappearing. Farmers, most of them women, cleared land for cash crops or cut trees for fuel faster than anything replaced them, and the women who bore the daily cost of that loss had no formal claim on land or forestry policy at all.

On June 5, 1977, World Environment Day, the Council marched from downtown Nairobi to Kamukunji Park and planted seven trees in honor of community leaders — the movement's founding act. Simply asking women to plant more trees as a civic duty would have competed with hours already spent fetching water and firewood and farming; it needed to be worth their time on its own terms.

Maathai distributed tree seedlings to rural women through the new Green Belt Movement and paid them a small stipend — today equivalent to less than 10 US cents — for every seedling that was later found still alive and planted out, not for the seedling handed over or the hole dug. Where literacy was needed to keep planting records, the movement paid the women's husbands and sons to do that bookkeeping, but the payment itself stayed tied to a tree surviving in the ground, months after planting, not to the act of planting it. That shifted the incentive from a one-time gesture a funder could count