How many countries attended the Earth Summit at Rio de Janeiro in 1992? |
190 states 180 states 170 states 160 states |
170 states |
The growing focus on environmental issues within the arena of global politics was firmly consolidated at the United Nations Conference on Environment and Development held in Rio de Janeiro, Brazil, in June 1992. This was also called the Earth Summit. The summit was attended by 170 states, thousands of NGOs and many multinational corporations. |