Question: what was agenda 21 of earth summit of rio de janeiro

title: Agenda 21
text: Agenda 21 is a non-binding , action plan of the United Nations with regard to sustainable development . It is a product of the Earth Summit ( UN Conference on Environment and Development ) held in Rio de Janeiro , Brazil , in 1992 . It is an action agenda for the UN , other multilateral organizations , and individual governments around the world that can be executed at local , national , and global levels . 

Answer: answer: Agenda 21 is a non-binding action plan of the United Nations with regard to sustainable development.  It is an action agenda for the UN, other multilateral organizations, and individual governments around the world that can be executed at local, national, and global levels.