In 1994, the united nations sponsored a conference in cairo to discuss deforestation global warming overpopulation issues the cold war

Overpopulation is the correct answer.

Explanation:

The International Conference on Population and development was organised in Egypt on 5-13 Sept 1994. At least 20,000 delegates from various government and agencies gathered for discussing about immigration, birth control, family planning and women education. It received media attention due to the issues of reproductive right. Islamic nations and Holy see criticised this event and US president Bill Clinton was also criticised by conservatives for participating in this event.

chlorofluorocarbons are released via: aerosol sprays and refrigerants.

the world may never know