Ozone depletion and climate change are serious threats to the very survival of human beings. What are the measures taken by various countries to mitigate the problem?

International efforts to control these problems are as follows:

1. The United Nations framework convention on climate change (UNFCCC) — In the convention, it was agreed that the future global warming should be limited to below 2°C relative to the preindustrial level.
2. The Kyoto protocol — In this protocol countries agreed to cut the greenhouse gas emissions by 5.4 per cent.
3. The Global Environmental Facility (GEF) — Its main objectives are reduction of greenhouse effect and reduction of ozone layer depletion.