<Li> 1980s: Establishment of approximately 2,000 public green belts carrying 1,000 tree seedlings on each green belt </Li> <Li> mid-1980s: Pan-African Green Belt Network developed (since adopted in Tanzania, Uganda, Lesotho, Malawi, Zimbabwe etc .) </Li> <Li> 1988: Struggle against construction of Africa's tallest skyscraper in Uhuru Park Nairobi (see "Activism Against the Odds" below) </Li> <Li> 2008: Support of the Billion Tree Campaign </Li>

What is the slogan for the green belt movement