Correct option is B
The Precautionary Principle was first introduced in The First International Conference on Protection of the North Sea, held in 1984. This principle emphasizes taking preventive action in the face of uncertainty, particularly concerning environmental protection, even if some cause-and-effect relationships are not fully established scientifically.
Detailed Explanation:
1. Kyoto Protocol:
Adopted in 1997, it focuses on reducing greenhouse gas emissions but does not introduce the precautionary principle.
2. First International Conference on Protection of the North Sea:
The precautionary principle was formally recognized for the first time at this conference, particularly for protecting marine environments.
3. Vienna Convention:
Adopted in 1985, it focuses on protecting the ozone layer but does not explicitly introduce the precautionary principle.
4. The Earth Summit (Rio de Janeiro, 1992):
Though the principle gained global attention here, it was introduced earlier at the North Sea Conference.
