
Education:
Mount St. Scholastica College
(Now the University of Pittsburgh)
Major: Biology
Minors: German and chemistry.
Degree: Bachelors of Science.
1964-1966
Benedictine College
Degree: Masters degree
In: Biology
1964
University of Giessen
Ludwig Maximilian University of Munich
1967
University College of Nairobi
(Now University of Nairobi)
Degree: Doctorate/ Ph. D
In: veterinary anatomy
1969
In 1977, Wangari found the Greenbelt Movement because women in rural Kenyan reported that their streams were drying up, their food supply was less secure, and they had to walk further and further to get firewood for fuel and fencing. GBM encouraged the women to work together to grow seedlings and plant trees to bind the soil, store rainwater, provide food and firewood, and receive a small monetary token for their work.

Wangari spent the majority of her life in Kenya, working on her environmental issues. Which included planting trees, obtaining drinkable water, and much more.
Wangari was able to get tons of trees planted, along with many laws put into place.
Sources:
https://en.wikipedia.org/wiki/Wangari_Maathai