joined the National Council of Women of Kenya (NCWK). Through her work at these various volunteer associations, it became evident to Maathai that the root of most of Kenya's problems was environmental degradation. In 1974, Maathai's family expanded to include her third child, son Muta. Her husband campaigned again for a seat in Parliament, hoping to represent the Lang'ata constituency, and won. During his campaign, he had promised to find jobs to limit the rising unemployment in Kenya. These promises led Maathai to connect her ideas of environmental restoration to providing jobs for the unemployed and led to the founding of Envirocare Ltd., a business that involved the planting of trees to conserve the environment, involving ordinary people in the process. This led to the planting of her first tree nursery, collocated with a government tree nursery in Karura Forest. Envirocare ran into multiple problems, primarily dealing with funding, and ultimately failed. However, through conversations concerning Envirocare and her work at the Environment Liaison Centre, UNEP made it possible to send Maathai to the first UN conference on human settlements, known as Habitat I, in June 1976. In 1977, Maathai spoke to the NCWK concerning her attendance at Habitat I. She proposed further tree planting, which the council supported. On 5 June 1977, marking World Environment Day, the NCWK marched in a procession from Kenyatta International Conference Centre in downtown Nairobi to Kamukunji Park on the outskirts of the city, where they planted seven trees in honour of historical community leaders. This was the first event of the Green Belt Movement. Maathai encouraged the women of Kenya to plant tree nurseries throughout the country, searching nearby forests for seeds to grow trees native to the area. She agreed to pay the women a small stipend for each seedling which was later planted elsewhere. In her 2010 book, Replenishing the Earth: Spiritual Values for Healing Ourselves and the World, she discussed the impact of the Green Belt Movement, explaining that the group's civic and environmental seminars stressed "the importance of communities taking responsibility for their actions and mobilizing to address their local needs," and adding, "We all need to work hard to make a difference in our neighborhoods, regions, and countries, and in the world as a whole. That means making sure we work hard, collaborate with each other, and make ourselves better agents to change." In this book, she explicitly